Generic terms for currencies and cents

I am building a website which calculates the cost of owning a vehicle.

Among other fields, I need to ask the user to enter:

  1. Cost of the vehicle
  2. Fuel price per litre

The application should be agnostic to user's currency. So for the first question, I can just ask for the "amount" or "price" of the vehicle without showing any dollar/pound/euro/whatever symbol.

Now while entering the fuel price, I need to give the user an option to enter the value in the same currency as the price of the vehicle, or ​1⁄100 of the currency unit (cents for example).

For example, if the user is in Australia, they'll enter the vehicle price in $, but they can enter the fuel price as 150.9 cents per litre. Or they can enter as 1.509 $ per litre.

What would be a generic term for "cents", which every currency person would understand that I'm referring to ​1⁄100 of the currency unit?

In other words, what should the radio buttons say, while giving a choice to the user for entering the fuel price? If I was making it just for Australia, radio button 1 would say "$/L" and button 2 would say "cents/L" or "c/L".