Hello!

So I am having a really BIG problem coming up with a formula..

Here's the issue:
I have a number in E11 that is negative. I'm trying to subtract two percentages that are in E7 & E9 to this negative number to reduce it and make it go positive.

Here's an example of what I mean: -654 - 58% - 7.125% = -255.10
E7 = 7.125%
E9 = 58%
E11 = -654
E13 = Total(-255.10)

What is a good formula for this?

Thanks!