This formula "
if {ICDET76.ITTRND}>= {?S1 From Date} and {ICDET76.ITTRND}<={?S1 To Date} then
s1qty:= s1qty + {ICDET76.ITQTY#}; "
shows the qty used for an item corresponding to the month param entered.
In a new report, I need to show what was qty used for the item, but one year ago from that param date. What would be the way to calculate, in this formula
which i would use in the new report?