Sigma Summation in Excel

[chrismacldn]

I am looking for some advice on how to do a Sigma calculation in Excel. I have quite an elaborate equation that calculates rebate percentages on casino bets. I'm able to calculate the equation for one round of betting, but when it gets to more than two rounds of betting the equation gets bigger. I have all of the other variables (c, k, P) on the excel sheet, but need to know how to write the formula. Any help would be greatly appreciated.

 

[Fluff]

Have a look here
https://www.mrexcel.com/forum/excel-questions/208026-sigma-summation-help.html