When you hear a credit card fee, remember that it is calculated off gross sale, not profit. A 5% fee on an item marked up 100% is a 10% drop in income to a fam

When you hear a credit card fee, remember that it is calculated off gross sale, not profit. A 5% fee on an item marked up 100% is a 10% drop in income to a family-shop. Food profits run much tighter than other goods, so it can be even worse.