> I don't understand why an instantly-settled debit transaction required a percentage based fee, rather than a flat one. Because they can. Because banks, utili

> I don't understand why an instantly-settled debit transaction required a percentage based fee, rather than a flat one. Because they can. Because banks, utilities, insurance companies, etc. all sell products that you in one way or another are required to buy, and as such, they can set the terms of that exchange knowing damn well you'll pay the vast majority of the time.