dertsap,
Rounded correctly, the merchant would only round the final total price. Let's say the total price of your shopping was $95.72. You would pay $95.70. Yes, rounding down is OK too.
Sometimes your bill would round up and sometimes it would round down. In the long run, you break even.
I try to think of a single item I can buy with a penny, and I can't come up with even one item. Maybe one item, a restaurants checkout counter, they sometimes have a candy bowl. Nah, even a mint costs a nickel or dime these days.
I contend that our lowest valued coin should be large enough to buy something. |