Member Discussion
on Casio HL-820ER Calculator
How to change the Exchange Rate
You can change the exchange rate, by holding down the '%' key (RATE SET above key) for at least 3 seconds.
The Euro and Rate will be displayed on screen. Now type in your new rate as a percentage.
Example: For a 17.5% exchange rate type 1.175. Now press the '%' (Rate Set key) again.
Your new exchange rate is set!