Percentage Expression

Hi,
How do I calculate a % for the Group Totals ?
%age = ((CurrentYear - PreviousYear) / PreviousYear)
Thankstry sum( ((CurrentYear - PreviousYear) / PreviousYear) )|||If you want the percentage for the entire group, I'd do it as %age =(sum(current year) -sum(previous year))/sum(previous year).
if you do %age = sum((current - previous)/previous) you'll get the sum
of all the individual percentages|||If you want the percentage for the entire group, I'd do it as %age =(sum(current year) -sum(previous year))/sum(previous year).
if you do %age = sum((current - previous)/previous) you'll get the sum
of all the individual percentages|||If you want the percentage for the entire group, I'd do it as %age =(sum(current year) -sum(previous year))/sum(previous year).
if you do %age = sum((current - previous)/previous) you'll get the sum
of all the individual percentages