The typical cut taken from a $5 transaction would probably look like about 30 cents flat fee plus 3% = 15 cents with another maybe 5 cents per transaction (on a

The typical cut taken from a $5 transaction would probably look like about 30 cents flat fee plus 3% = 15 cents with another maybe 5 cents per transaction (on average) from the flat fees you pay to all of the people helping you process cards if you have particularly low volume. That's 10% lost to processing, which clearly sucks, but you're still taking home $4.50...