If your hotel accepts payments in different currencies and wants multiple currencies to appear on your receipt, with can do this.
Just follow these steps:
Go to Back Office / Settings / Business & Finance Setup.
Go to the option: Enable Multi-Currency Payments. Choose: Yes. Click Save.
Go to Back Office / Settings / Exchange Rates
Choose the exchange rates you want to use, type the amount and choose the "Active" drop-down button to the right of each exchange.
Click "Save" and "Close".
That's it! You have set up your Exchange Rates.