ok, here it is: in A1 is the number: 120

A B C D
5 9 =(B5*A6)+B5 =C5*A1
6 10% 10 =(B6*A6)+B6 =C6*A1
7 12 =(B7*A6)+B7 =C7*A1

Ok here is my delima (please note the formula itself is not important as
I'm simplifying it for this explanation.

Ok, I copy this set of 3 rows and move down in order to do another set using
a different % like 20%, when I copy I lose the A1 in the formula, excel does
not keep my costant for A1 in the formula it moves it (depending on how far
down I copy) to be A5, A6, A7 etc. I have done everything I can think, I want
the 120 to be universal for the whole sheet so I can change that number. Is
there a way to copy and not have it change that A1 or do I have to go in and
fix that formula everytime.