Currencies
Overview
Drupal Commerce uses the internationally-recognized standard of CLDR data to provide multiple currency support. Currencies are formatted based on the locale of a language, giving a true localized experience. All of this is possible due to the underlying multilingual and localization capabilities of Drupal.
Adding a new currency.
Visit the Commerce configuration page and go to the Currencies page in the Store section.
The currencies page shows a list of all currencies currently added. To add a currency, such as the Canadian Dollar, click on + Add currency. The next form will provide you with a list of available currencies to import. Select your currency and click Add
Editing Currencies
While not common, sometimes you may wish to modify a currency that was added. Once a currency is added, you can click Edit to modify the currency.