I have 2 formulas which holds a value for the current and previous year
Product_CY and Product_PY
I want to add another formula that calculates the growth between the
two years, I tried Product_CY - Product_PY / Product_PY
The answer I get is wrong, and not sure if it is to do with the groups in my report.
I have 3 groups CustomerGroup, Region and CustomerName which is the detail
and I place my formulas in the CustomerName group header.