yah, i know N/A isn't zero, which is why i thought the original formula would work.
in my original formula...i thought excel would be smart enough to decide that if g8 is NOT 0 (which means N/A falls into that category) OR if AB8 is NOT greater than 0, it would directly look at the value of ab8.
I get 0 from the formula if G8 is #N/A, or if G8 is zero, or if AB8 is > zero. I thought it was funny you'd want 0 if G8 is not zero, but that's the formula you posted.