> Imagine you own a gas station. Your actual cost to fill your tanks is some multiple of the price you can charge per gallon. Requiring 10 cent-rounded prices kneecaps your ability to efficiently price your product.

This is… already the situation?

Most gas stations where I am are pricing their product in thousands of a cent and rounding the total off to the nearest cent when it’s time to pay.

We got rid of the penny a decade ago in Canada. It just means that for cash transactions the gas station rounds off to the nearest five cents instead. The most they can “lose” is two cents _on the total transaction_. Hardly seems different than losing several tenths of a cent on some transactions (as they already were) in aggregate.