You can use running totals to tally items
in a group. The running total starts with the first item in the group and ends
with the last. The process starts again for the next group, until all groups
are done.
In this procedure, you will create a
report where a running total combines with a group to perform several
functions:
Maintain a running total of customer
orders.
Group customer orders and reset the
running total for each group.
Display the subtotal for each customer
group.