Hello, I was woundering if someone could give me the formula for this? I have
A cell "M26" that has a total number in it from a sum from another cell. And
I have a row of cells "R11,R13,R15,R17,R19,R21,R23" that are blank. What I
want to do is when I enter a number in one of the "R" cells it would subtract
that number from the M26 cell. Will this give an error or something because
the number in the M26 is a total from another formula.

Thanks!!!!