The RSL in Cairns also had DCC with Tyro branded terminals (although a different type but with the same operation), and the on screen DCC markup was 5%. Another non-AUD cardholder was in front of me and paused when the prompt came up. After a few seconds, the cashier reached over and opted the customer out of DCC. The customer asked what that was, and the cashier said that it was a currency selection but that you always wanted local currency because it was a better exchange rate.