To change the display of the currency symbol from the default $ to any other currency symbol sign:
Navigate to Settings > Catalog > General
Find the "Currency Symbol" at the bottom of the "Pricing & Catalog Information" section
Change the Currency Symbol to any currency symbol of your choice and Save
Note: This setting only changes the display of the currency symbol. We currently support different currencies through Paypal only. If you would like to change the currency you wish to charge in, you will need to set it up with your payment gateway. Not all payment gateways support multiple currencies. The above steps only change the display of the symbol.