Results row Formula Collision
I have a report where there are three key figures in 3 columns. Column 3 is (value in column a)/(value in column b). That is if a,b,c are values c = a/b. Now my problem is this. In the results row for this column I want the same formula to be applied. That is results row value should be (a1a2a3---an)/(b1b2b3----bn) instaed of the average of column c. I tried all settings of formula collision and still I am not getting the value I want. Any suggestions please?