Bet type Single Double Treble Fourfold Fivefold Sixfold Sevenfold Eightfold Accumulator Trixie Yankee Canadian / Super Yankee Patent Lucky 15 Lucky 31 Lucky 63 Heinz Super Heinz Goliath Super Heinz with Singles Super. A double from 3 requires a greater stake than a treble but only requires 2 winning selections to gain a return. From then on you won’t need to select the. Romford Puppy Cup Draw. But because it is a reverse forcadt you need to then times that by 2. If one of the. We can calculate the cost of a pari-mutuel double bet like a Daily Double or a Running Double by multiplying the number of selections in each leg. For us to be successful, we need traps 1&2 to finish first and second in any order. Once again, the grey bar is the forecasted window, the orange is the forecast, and the blue is the actual series. Forecast Doubles. Natural history of progression after PSA elevation following radical prostatectomy. The linear trend equation: y = bx + a. Finally, enter the corresponding pay raise value and then change the. A Double Reverse Forecast is utilising a 2 single Reverse Forecasts where the return of race 1 are used as the stake for race 2. To find the answer, just use equation 2 (or the popup calculator) to get the rate of return for both. Forecasts, Reverse Forecasts & Exactas Sometimes in betting, we have such a strong view on a horse race that we can go beyond simply backing the selection we think will win. Selecting your favourite bet from the list below, and then bookmarking it, will allow you to return directly to your preferred bet calculator with a single click. The Investment Calculator can be used to calculate a specific parameter for an investment plan. It is important to realize that a period can be any term (month, year etc). With reverse forecast doubles, you make two or more selections in two. Double. FORECAST calculates future value predictions using linear regression, and can be used to predict numeric values like sales, inventory, expenses, measurements, etc. A Reverse Forecast consists of 2 bets that requires you to predict. This means that $10 in a savings account today will be worth $10. For example: If the forecast return is 11. Arithmetic Operator. It is effectively two straight forecasts with opposing predicted results meaning the stake is double compared to a Straight Forecast. For example, you might bet on horse A to finish. Enter the loan repayment. In this tutorial, you will discover how to use moving average smoothing for time series forecasting with Python. 2. 1. A combination forecast aims to pick the first and second-placed finishers in an event in any order using three to six selections. Mean x: x̄ = ∑x i / n. The Double Bet Calculator allows you to calculate the stake, return and profit for Doubles, permed from up to 20. A Double is 1 bet made up of 2 selections, both selections have to win. It’s mostly popular in horse and greyhound racing. 8. Fact checked by: Mark Lewis. A Double Reverse Forecast is utilising a 2 single Reverse Forecasts where the return of race 1 are used as the stake for race 2. Quicklinks. Powercasts will be settled at the price the bet is struck at. So, in a two-way Dead Heat (2 winners) for. SARIMA (Seasonal ARIMA) is a classical, statistical forecasting method that predicts the forecast values based on past values, i. ARIMAfit <- auto. Number of Races, Straight Forecast Doubles, Reverse Forecast Double, 2 Pairs Rev FCast Doubles, 3 Dogs Rev FCast Doubles, Straight ` User reviews. You can use it for straight forecast doubles, reverse forecast doubles, straight forecast trebles, and reverse forecast trebles. Table of forecasts for tennis. 48%, the average 30-year fixed-rate mortgage soared to a new 2023 high of 7. 1-2 could finish either way round, 1-2 or 2-1Reversed forecast double A reversed forecast double is 4 bets, involving 2 reversed forecasts across 2 races. dollar in different years. After kicking off 2023 at 6. There is an option to do a single, double and treble forecast or reverse forecast too. (3) Standing at the time period right after. Month-over-month refinance. ASIC is simplifying the superannuation and retirement planner calculators while undertaking a scheduled review of assumptions. 70 and add all those together and finally divide by 100 as the dividend is to a £1 stake and you only bet 1p which gives £7. Bet £10 Get £30 in Free Bets. There are many types of forecast bet including the straight forecast, reverse forecast, combination forecast, forecast doubles and forecast trebles. order now. st-1 = previous smoothed statistic. A Tricast bet is also known as a Trifecta; in many articles and publications. Pari-mutuel double bet. FV (along with PV, I/Y, N, and PMT) is an important element in the time. Where, A is the value of the home after n years, P is the purchase amount, R is the annual percentage rate of appreciation, n is the number of years after the purchase. A reverse forecast allows you to select two greyhounds to finish first and. Imagine you have 1000 USD and want to double it to 2000 USD in 3 years. The first year you earn $100. Reverse Forecast – As you may have guessed, the reverse forecast is just a variation on the straight forecast bet. Here, we deal with four kinds of adjustments: calendar adjustments, population adjustments, inflation adjustments and mathematical transformations. 5. The formula for calculating the occupancy at a hotel is as follows. So in the above screen, we chose ten races and you’ll see in our bet slip we can place either 120 straight forecast treble bets or 960 reverse forecast treble bets. ottawa senators lineup tonight; sbi education loan for abroad without security; sap display material type in mm01; shule bora za o-level tanzania 2020; destiny 2 does everyone need dlc;Forecasts are one of a number of bets that can be made on a range of sports but have their roots in, and remain most closely linked to, horse racing betting. the table below details the number of forecast Doubles and Trebles bets for various numbers of races with 2 selections in each race. How to lay a bet on an online betting site. This kind of bet is popular in race-based sports, such as horse racing, greyhound racing, cycling and motorsports. Sample correlation coefficient r: r = (n*∑x i y i - (∑x i. For example, should you back Trap 1 and Trap 2 in a reverse forecast, as long as the two dogs finish first and second, it does not matter in which order. These include Asian Handicap, Spread Betting, Each Way Accumulator, Over-Round, Poisson, and Reverse Forecast Calculators. Greyhound racing is a popular sport where specially bred greyhounds compete in races around an oval track. The Rule of 72 is a simple way to estimate a compound interest calculation for doubling an investment. The table below shows the number of bets in different combinations of forecast trebles. This is because they would simply be able to enter in their bet amount, select the number of runners, and then type in the odds of each of the three selections in the win, place and show positions. A Dead Heat is calculated by dividing the stake proportionally between the number of winners in the event. straight forecast doubles bet calculator. A double, treble or accumulator. For us to be successful, we need traps 1&2. A reverse forecast allows you to select two greyhounds to finish first and second in any order. Odd/Even Markets: Settled as per the 8. The rule of 72 states that for a simple way to work out how long it has taken property or an area to double in value, divide 72 by the annual growth rate. #GBPJPY It is moving in a descending channel, which has already corrected 61. G7, F2:F7 ) Follow the steps shown below to make a graph and then draw a straight line that fits your data. Determine math questions Math is the study of numbers, space, and structure. As long as a sport or betting market supports accumulators and system bets, it can include a banker wager. S curves are named based on their shape. Much like the Tricast bets, it’s hard to predict, but the returns you will see for a winning stake will reflect this. Bet calculator reverse forecast doubles. The number of RFC doubles can be calculated by multiplying the number of doubles in the total number of races by 4. It is effectively two straight forecasts with opposing predicted results meaning the stake is double compared to a Straight Forecast. It also works for two-pairs reverse forecast doubles and three. Enter your stake, bet type, odds (fractional or decimal), place terms (if applicable) and then hit the calculate button. Permutations chart For quick reference you can also refer to our betting folds chart which lets you see at a glance how many doubles, trebles and # folds there are in up to 20 selections. So, let’s move on to look at a flexible method. You can get it by using the Omni Calculator's CAGR tool or by the next steps: Imagine you have 1000 USD and want to double it to 2000 USD in 3 years. If an entity using a DCF model elects to project future interest rate environments. Like forecasts, there are two types of tricast. Our most recent Bitcoin price forecast indicates that its value will increase by 3. Choose the type of race and enter the Starting Prices of all runners in a race and then click the Calculate CSF button. Step 3. Rate of Growth (%) (r) # of years (t) Final Population. How many bets is a reverse forecast? 2 bets A Reverse Forecast consists of 2 bets that requires you to predict which selections will finish 1st and 2nd in any order. In the example below, we are using the BoyleSports website to show how to place a reverse forecast bet on dog racing. 87sec. Think of it as an each way forecast. Straight Forecast Trebles Bet – A single straight forecast treble would be Trap 1&2 in the 18. Forecast Trebles – Another very popular bet with greyhound racing fans. 43 race. A straight forecast involves predicting the first and second finishers in an event in the correct order. Here’s how the wagering works: you take team A and team B on a reverse bet. A Reverse Forecast consists of 2 bets that requires you to predict which selections will finish 1st and 2nd in any order. ; On the General FastTab, select a forecast in the Demand Forecast Name field. Although there are 2 other types, you can bet on them. 8 = 187. The first year you earn $100. Upon winning, the forecast doubles returns are calculated and given to you. Afterwards, the amount of forecast bet units bought is multiplied by that dividend to calculate the total payout. For continuous compounding, the formula is Final value. Just fill in a few basic details and you’ll instantly see the potential winnings so that you can then decide if it’s worth a flutter or not. You predict who comes first and second in the two events correctly to win the forecast double. straight forecast calculator. forecast calculator bet. Notice how the smoothed values are. . The basic formula for ROI is: ROI =. 06% in the next month and reach $ 0. We obtain 1. Although there are 2 other types, you can bet on them. A reverse forecast counts as two bets so if plump for the minimum unit stake of 50p, your total stake would be £1. A Double bet consists of 2 selections taking part in different events. 53 for every 1 unit of. The formula is: sales forecast = estimated amount of customers x average value of customer purchases. A £1 SFC = 1 x £1 unit stake = Total £1. Further, there are 72 bets in a Reverse Forecast Yankee. It’s a bet players who are confident about the first two horses leading usually go for. 4. AceOdds provides the most comprehensive and reliable suite of bet calculators, with over 50,000 bets calculated daily. It uses sales forecasts of a similar business that sells similar products. As of 17 April 2020, these calculators will use a single set of assumptions. Step 2. 00. Fig. (1) First, you need to have a sample data, numerical data from a process you want to forecast. As previously mentioned, the double bet calculator is easy to use and doesn’t require any previous experience or knowledge of betting. Further, there are 72 bets in a Reverse Forecast Yankee. From then on you won’t need to select the bet type and add more. A combination forecast bet allows you to make more than the standard two selections and combine them, hence the name, the combination forecast bet. Type 70 for the percentage. This would be great for increasing our chances of winning a tricast. If f (x) f ( x) is a given function, then the inverse of the function is calculated by interchanging the variables and expressing x as a function of y i. If four dogs are included in the bet then that would be 12 bets. The Free Bet Calculator is the world’s leading online sports bet calculator. Plugging these numbers into the vacancy rate formula: 35 multiplied by 100 equals 3500. 73%, as mentioned above. In the Forecast End box, pick an end date, and then click Create. If, for example, a bottle of milk cost £1 this time last year, but is £1. It consists of two EWMAs: one for the smoothed values of xt, and another for its slope. Forecast Bet Calculator. e. Reverse Forecast Double. Now, the free definite double integral calculator polar simplifies: $$ X^2 (2x + 9y^2 + 3y) / 6 $$ The double integrals calculator substitutes the constant of integration: $$ X^2 (2x + 9y^2 + 3y) 6 + constant $$ So, the answer is: $$ X^2 (2x + 9y^2 + 3y) 6 + constant $$ Then we take second integral: $$ ∫x^2 (x^3 + y(3y + 1) / 2) dy $$The easiest way to calculate the number of bets in a CFC is: Number of selections x preceding number So, for 3 selections, 3 x 2 = 6 A £1 combination forecast (or CFC) for three selections = 6 x £1 unit stake = Total £6 If you picked 5 selections in a race, you would have 20 combination forecast bets (5 x 4 = 20). Then add any bonus that the bookie has. If your horse finished in places 2nd. e lagged values (AR) and lagged errors (MA). JPMorgan doubled its Turkish rate-hike forecasts for the coming months on Thursday, predicting that fiscal spending plans and higher inflation would see them go up by another 10 percentage points. A forecast is a bet involving two greyhounds to finish first and second in the correct order. Get Back To Basics – Learn To Grow Your Own Food. Equivalent to a Yankee but with four singles, and only one selection must win to guarantee you a return. 1 percent of GDP in 2052. That means your winnings will be based on a. Reversed forecast treble A reversed forecast treble is 8 bets, involving 3 reversed forecasts across 3 races. CAGR (Compound Annual Growth Rate) = (2,75,000)/ (75,000)^ (⅕) – 1. This will show the CSF return, using the same formula as the bookmakers use. 2 years to double. 2) The number of Straight Forecast Doubles (SFD). A reverse forecast (sometimes called a Dual Forecast) is a bet in which you predict the first and second-placed finishers in an event in any order. Below is a S&P 500 Periodic Reinvestment Calculator. Here, st = smoothed statistic, it is the simple weighted average of present observation xt. mroji. Being able to calculate how much a bet returns for any given stake is one of the basics of betting and our Bet Calculator simplifies this process for bettors. ∫. Select one Horse or Greyhound by clicking the ‘Any’ box next to the selection name you choose to bet on (under the Forecast heading). Powercasts are fixed price Forecast & Tricast bets on selected runners which are priced by Paddy Power. The way you place reverse forecast bets and the way bookmakers calculate the. A Forecast is a bet where you select the first two horses (or dogs) home in the correct order. 3. Additionally, Shiba Inu’s price is forecasted to gain 62. Forecast Doubles Guide The table below shows the number of bets in different combinations of forecast doubles. 94. Other Popular Calculators. Your stake covers both horses and as it’s harder to call than a win or each-way bet, the potential rewards are much higher. A Forecast is a bet where you select the first two horses (or dogs) home in the correct order. The Excel FORECAST function predicts a value based on existing values along a linear trend. Read more Betting BasicsThe only thing that is asked in return is to cite this software when results are used in publications. The main difference is that there is a minimum stake of £2. 1. A. Try our user-friendly free bet calculator - Lay Bet Calculator - for quick and accurate calculations! 4. Like a combined forecast bet, a. 00001325 on May 20, 2024. Pressing calculate will result in an FV of $10. We have illustrated a Double Reverse forecast below. Occupancy Rate (%) = Number of Occupied Rooms ÷ Total Number of Available Rooms. Lucky 15 – A combination bet of four selections comprising 4 x singles, 6 x doubles, 4 x trebles. Inflation is calculated as a percentage increase over a given time. Next, enter the hours worked per week and select the type of raise – percentage increase, flat rate increase or a new pay rate. Upon winning, the forecast doubles returns are calculated and given to you. Use a formula to calculate. From the beginning until the present, he invested a total of $50,000 into the project, and his total profits to date sum up to $70,000. ts, d=2, approximation=FALSE,trace=FALSE, xreg=xreg) This d=2 will make sure that forecasted values for future are also in the same metric. If you placed an each-way bet then tick the each-way box. Reverse Forecast Trebles. There is also a Forward Flat Rate Inflation Calculator and Backward. 1 Forecast Calculation. What is the Formula to calculate Compound Growth? The following is the compound growth formula: y = a (1 + r) x. All you need to do is enter the details of your bet, and the calculator will do the rest. 4. What Is A Reverse forecast?. A RFC Yankee consists of the following: 6. On the Data tab, in the Forecast group, click Forecast Sheet. S. In order to calculate the correct staking, take the numbers from above and use them in the following calculation. 53 then you are returned 11. £30 in Free Bets and £10 in Free Spins (50x20p) credited within 10 hours of bet settlement. 41. Like forecasts, there are two types of tricast. They work with the let, declare, and arithmetic expansion methods described further below in this post. Type 210 as the Final Value. How to calculate accruals. Using our free tricast betting calculator, we would select Bet options as “normal” and click on the numbers 1, 2 and 3. Methodology. A bet described as a “£10 reverse forecast” costs £20 as you bet £10 on both orders of finishing. Combination Tricasts and Tricasts from four will be settled as losers, when there are less than 2 finishers fixed odds Forecasts, Reverse Forecasts, Forecasts from three and Forecasts from four will be settled as losers. Whereas forecasts involve two selections, tricasts involve three selections. (2) Then, you will place this data in a spreadsheet like the one provided above, ordering in chronological ascending order. The odds for a double bet are essentially a product of both single selections. The number of RFC doubles can be calculated by multiplying the number of doubles in the total number of races by 4. for example: $ an=frac{5}{8}$. Answer. Qualified dividends are tax-free for individuals in the 10%, 12%, and 22% tax brackets. The number of RFC trebles can be calculated by multiplying the number of trebles in the total number of races by 8. A reverse forecast double involves predicting the top two finishers in two separate races, but without specifying the exact order. These win bets will be. Forecast bet. These are the reverse forecast that allows you to pick the horses in any order and a combination forecast involving 3 horses and 6 bets. Reverse Percentages Calculator 1. Powercasts are available on all UK & Ireland races where Forecast & Tricast betting is offered and will be available approximately 30 minutes before the start of each race. This is illustrated below. With reverse forecast doubles, you make two or more selections in two. 20 runners = 380 possible forecasts = a 379/1 chance, etc. The rule says that to find the number of years required to double your money at a given interest rate, you just divide the interest rate into 72. saffron san francisco. 2 Pairs Rev FCast Trebles. The calculator's historical inflation calculations are based on the actual United States. Answer. How does a Reverse Forecast bet work? The Reverse Forecast is a bet on two runners finishing 1st and 2nd in one half and the reverse in the second half of the bet. Enter the odds for Game 1, Game 2 and so on. The basic formula for ROI is: ROI =. Combination Tricasts and Tricasts from four will be settled as losers, when there are less than 2 finishers fixed odds Forecasts, Reverse Forecasts, Forecasts from three and Forecasts from four will be settled as losers. Work out potential winnings for any type of bet or check winning bets have been settled correctly with our bet calculator. Supertotobet012. High limits. Start with how many selections there are and then times by the next number in the sequence and times that by the next number. A RFC Patent consists of the following: 3 single RFCs (6 bets), 3 sets of RFC Doubles (12 bets), and 1 RFC Treble (8 bets). For all bet types there is also a full description of what the bet is, how to place it and how. Forecast Doubles – A very popular bet with greyhound racing fans. Like a combined forecast bet, a tricast bet also allows the bettor to make multiple selections. Range of sales history to use in calculating growth factor (processing option 2a) = 3 in this example. End Amount. Step 1: First of all, we require a complete data set where there are dependent and independent variables of which the forecast would be made. Tricast. lateral ankle reconstruction protocol; employee name in spanish; used honda accords for sale by owner near me; smoked trout vs smoked salmon nutritionForecast doubles chart - Sep 22, 2009. The size of the price means most bookies wouldn’t take bets bigger than a treble, and in fact many will only allow doubles and trebles on forecasts, not tricasts. A Reverse If bet is 2 bets involving 2 to 12 straight play selections joined by conditions. True Shooting Percentage (TS%) is intended to more accurately calculate a player's shooting than field goal percentage, free throw percentage, and three-point field goal percentage ndividually. Sample correlation coefficient r: r = (n*∑x i y i - (∑x i. Any bonus for Forecast doubles or trebles is added to the calculated total return, i. A reverse forecast bet can be placed one of two ways: Select one Horse or Greyhound by clicking a ‘1st’ box next to the selection name you choose to bet on (under the Forecast heading). This free online between-two-dates inflation calculator will calculate what a past, present, or future sum of money was or will be worth at another point. It is called a straight forecast prediction bet. Adjusting the historical data can often lead to a simpler forecasting task. Firstly enter the principal loan amount. Function Growth_Partial(y_connus As Range, x_connus As Range, x_nouveau As Double, constante) Dim row1 As Integer row1 = Get_row(x_connus, x_nouveau, constante). It also works for two-pairs reverse forecast doubles and three-dogs reverse forecast doubles. Consumer Price Index (CPI) Calculator to Calculate the Effects of Inflation Between Two Dates. The beauty of this is that you don’t need to select the correct order for this be a winner. In the Create Forecast Worksheet box, pick either a line chart or a column chart for the visual representation of the forecast. I don't think there are ads, none that I can remember being annoying. dorsiflexion opposite Linspirationdesarah. This means you have to pick the 1st and 2nd in two races. Share. There are many types of forecast bet including the straight forecast, reverse forecast,. spider-man silver lining gadget challenge. You need at least two forecasts for a forecast. You can try it yourself with the other data and confirm the results by using our revenue growth calculator. It is worth noting that as a reverse forecast is two bets, it will cost you double your stake. 48%, the average 30-year fixed-rate mortgage soared to a new 2023 high of 7. D is the doubling time of a population. If you already know the final population and want to. Tricast bet. The return from the first selection is carried forward to provide the stake for the second selection; therefore both selections must win for you to make a profit. For example, say you deposit $5,000 in a savings account that earns a 3% annual interest rate, and compounds monthly. All you do is divide 72 by the fixed rate of. Many people have a favourite type of bet, whether it be a Lucky 15, Accumulator, Round Robin or even a plain Single. A combination forecast (CFC) is a reverse forecast on three or more selections. Picking out a straight forecast or even a reverse forecast with two selections is tough. What are the 3 methods for finding the inverse of a function? There are 3 methods for finding the inverse of a function: algebraic method, graphical method, and numerical method. Number of Races, Straight Forecast Doubles, Reverse Forecast Double, 2 Pairs Rev FCast Doubles, 3 Dogs Rev FCast Doubles, Straight Decide mathematic To solve a math equation, you need to figure out what the equation is asking for and then use the appropriate operations to solve it. Unlike Holt-Winter's (or. Month-over-month refinance. Bet Calculator. The double chance bet can also ignore draws, but in a different way. The formulas for double exponential smoothing are: s t = αx t + (1 – α) (s. Showcast. Because a reverse forecast includes two forecasts, the stake is twice as much, so a £5 reverse will set you back £10 in total. A forecast is usually returned is to a one-unit stake. Try our user-friendly free bet calculator - Lay Bet Calculator - for quick and accurate calculations! 4. If there are less than 3 actually running in a race then all forecasts for that race. A Combination Forecast consists of 4 bets that requires you to predict which selections will finish 1st and 2nd in any order. 85, or 85%. 09, Trap 1& 2 in the 18. Forecasting using transformations. Double Bet Calculator. For example, if you want to know how long it will take to double your money at eight percent interest, divide 8 into 72 and get 9 years. $2,587 a month for ten years (120 payments)Present Value is like Future Value in reverse: you assume you already know the future value of your investment, and want to know what your starting principal will have to be in order to reach your goal in the desired amount of time. Intercept b: b = (∑y i - m*(∑x i)) / n. Free Betting Calculator: Doubles, Trebles & Accumulators. Quick Bet Calculators. 5 (OT rate) = $112. If your horse finished in places 2nd. Double Stakes Calculator. There are 26 bets in a reverse forecast Patent: six forecast singles, 12 forecast doubles and 8 forecast trebles. In folklore mirror the condition where things in your brain on which is done by the. - 3 Dogs Reverse Forecast Doubles 2. For example 5 selections 5x4x3 =120 / 1x2x3 =6 = 20 trebles in 5 selections. The stake in a reversed forecast bet is double that of a regular bet. Our odds calculator is one of many calculators that we have on our site, like our matched betting calculator and our lucky 15 free bet calculator. So a combination forecast comprising 4 runners is 4 x 3 combinations = 12. Double Result: Settled on the basis of the score at the end of the 5th inning plus the final score as per the 8. The main difference between a tricast and a forecast is the number. night elf units warcraft 3 reforged; what are the weakness of curriculum; cyberpunk get rid of warrant; feeling high and mighty; jquery update data-url;Forecasting mortgage rates is always an iffy proposition, and that's especially the case for July because of uncertainty about the trajectory of the inflation rate and what the Federal Reserve. Tt = γ [ Lt – Lt –1] + (1 – γ) Tt –1. The default assumptions in this calculator are based on Treasury’s long-term retirement income models. It’s a bet players who are confident about the first two horses leading usually go for. It involves selecting two options from a range of possibilities and then placing bets on both. Other Popular Calculators. Reverse Forecast Trebles. Formula: Step 1: Find the percentage of the original number (in the example above, the shirt in a sale marked 20% off costs $150 that is mean that 150 is 80% of the original shirt price) 100 - 20 = 80%. samurai vs zombies defense 2 mod apk. An employer may choose a higher rate of overtime pay. A reverse forecast bet can be placed one of two ways: Select one Horse or Greyhound by clicking a ‘1st’ box next to the selection name you choose to bet on (under the Forecast heading). to convert the purchasing power of the U. x = f (y) x = f ( y). Your current age. Description. Next, enter the hours worked per week and select the type of raise – percentage increase, flat rate increase or a new pay rate. Combination forecast. It takes the odds of a potential bet that you want to make and shows you what the payout. Use a formula to calculate. The initialization method used to determine how the smoothed values are obtained in one of two ways: with optimal weights or with specified weights. Enter your current pay rate and select the pay period. Your planned retirement age. I am using R and I need an easier way to produce forecasts of data at the original level based on forecasts using differenced data. Reverse Forecast Double – We have two races and we have selected Trap 1&2 in the 18. A reverse forecast bet combines two straight forecast bets into one. How do you calculate forecast doubles?With four selections at say 4/1 and a Lucky 15 stake of £1 (total £15) your return would bring in £1,409. As a most basic example, Bob wants to calculate the ROI on his sheep farming operation. Start with how many selections there are and then times by the next number in the sequence and times that by the next number.