Why do gas stations charge 9/10ths of a cent, and how do they even take that out of your bank account?

Question

Why do gas stations charge 9/10ths of a cent, and how do they even take that out of your bank account?

In: Other

Answer 1

The use of the decimal is to make it appear that the price is one cent lower. This used to matter when across-the-street price wars were a thing.

The decimal is used in calculating the total price and is rounded on the last cent. You pay the final price that shows on the pump, and that price is to the whole cent.