you can use running totals with conditional evaluate formulas
or
variable formulas (same way idea but not with the running total GUI)
both of these need to be used in footers
or
you might be able to use summary functions (maybe combined with if-then formulas) -this
might be able to be ued in a header.
if you eaxplain your data set a little more and how you want it displayed someone wil be able to give more specific directions.
Edited by DBlank - 02 Apr 2012 at 6:40am