by DAVE » Mon Dec 19, 2011 2:07 pm
You know how it goes - "Spend $100 and get $10 off" or similar, with the "y" amount off either a dollar or percentage amount. But the important part is that all items on the sale are then discounted an equal amount to add up to the total "y" discount. That way if any one of the items are returned, the sales dscount is accounted for and customer does not get the incorrect full price back.