@dan025 Hi Dan
Do you want help to calculate the benefits/winnings?
The translation from french is kind of a guessing game but with that said, it seems you are quite near. One cell equals a calculation of others, ie in cell C2 you can write
=A2-B2
and get the remaining items. In cell G2
=(D2-E2)-F2
or maybe
=B2*(D2-E2)-F2
Finally, copy the cell with the formula, select the empty cells with new lines and paste.
There are a lot of maore ways to do this, but this may be a start.
In the attached file, you also have a more modern way to do it, using a (pyamas) Table