Formula Help subtracting Percentages

[BabyBandit82]

So I am trying to create a spreadsheet to help my mom track her sales on a particular website. I want the formula to figure out her take home after all the fees. Below is what I am trying to accomplish but I can't get a formula that works. Please help me.

Price (E2)-2.5
total of above x sum of F2+G2
total of above -2.9%

My current formula is =(E2-2.5)*(F2+G2)-(0.029)

I Also need
Price (E2) x sum of F2+G2
total of above - 20%
Total of above -2.9%

My current formula is =((D2*(E2+F2)-(20%)))-0.029

[josephteh]

1st formula = (E2-2.5)*(F2+G2)*(1-2.9%)
2nd formula = (D2*(E2+F2)*(1-20%)*(1-2.9%)

[BabyBandit82]

Thank you for your help. Those formulas worked. I still don't understand how the percentage worked just glad it did.

[josephteh]

To subtract 20% from x, you times x by 80%, i.e. x*(100% - 20%) or simply x*(1-20%).