In SubTotal and Grand Total lines, Keystroke recalculates Variables which contain the multiplication or division operators (^,*, /) at the time that they are printed since the results
would not be accurate if the Keystroke simply kept a running total.
To add up a formula with a multiplication/division operator instead of recalculating it, create two variables. The first variable contains the formula. The second Variable contains only the name of the first Variable. The formula in the first Variable recalculates. The second Variable does not.
See:
Edit Variable Screen
Variables in SubTotals and Grand Totals
Filters and Formula Functions
Filters and Formula Operators
Filters - Transaction Types
Report/Label Editor Contents