Currency SetupMagento Go lets you customize your store for currencies that are used in more than two hundred countries around the world.
System: Manage Currency - SymbolsYou can use standard currency symbols for your Magento Go store's accepted currencies, or you can use a custom symbol. Currency are displayed appear in the Admin panel of your store, and also in your storefront in orders, customer checkout, and so on.
System: Manage Currency - RatesAfter you set up your store's accepted currencies, you can control the currency rates for your Magento Go store. It's important to carefully manage currency rates, as they frequently fluctuate and can directly affect your bottom line.