Function to return report accumulator
The ACC() function, which is only valid in report formats, returns the contents of the specified report accumulator. There are 20 accumulators available in a report format (.frm file). All accumulators are cleared to zero at the start of the report (REPORT FORM) command. Accumulators 1 to 10 are cleared after each sub-total break. This function is useful if used in conjunction with the CALC() function which determines how accumulation takes place. It can be used to provide horizontal totaling in reports.
acc(1) + order_val * discount
Recital Server, Recital