The Exchange Rates page maintains a list of exchange rate records, one for each pair of currencies in the system. After saving an exchange record for the first time, you can add additional records specifying exchange rate values and the dates these exchange rates take effect.
Creating Exchange Rate
Select the Admin > Finance > Exchange Rates page.
Click New.
Enter the following fields.
Currency From - Select a currency.
Currency To - Select a currency.
Click Save. An Exchange Rate Values tab displays.
Click Add and enter values for the following fields.
Exchange Rate Date - The date the exchange rate takes effect.
Exchange Rate Value - The multiplier used to convert FROM currency amounts to TO currency amounts.
Repeat step 5 each time you want define a new exchange rate and the date when it takes effect.