https://docs.google.com/spreadsheet/ccc?key=0AiYcEqkgyjc_dGU0VzhHRGpOOUxudWkxdWpDN3RmbFE&usp=sharing
Thanks! One comment, please change the formula in column G, "Chips getting realistically", to the following:
=if(C9>0,$G$5*(C9-(C9*$G$3-C9))-$G$4,$G$5*(F9-(F9*$G$3-F9))-$G$4)
The third segment is changed to reflect the column "F" which has the shipping and fees included, since this formula subtracts shipping and fees.
No worries, the if statement actually will capture if there is a paid value and use that, and if there is no paid value it will attempt to use the value in column F.
Column F will have a value if Column D has a pledge, and if there is no pledge AND there is no paid, then the value will either be zero or error, both of which are equivalent (and valid) for this.
I've replaced your equation but the value is still slightly off the value in the original spreadsheet.