You can change the currency type using the following steps:
1. Click on the Magic button.
2. Select Manage Modules.
3. Click on the Shop module.
4. Click on the Configuration menu at the top of the screen and select General Configuration.
5. Locate the Default Currency drop-down field and select your preferred currency. ZAR - South African rand is located at the bottom of the list.
6. Change the Currency Prefix to your preferred currency (e.g.: R for Rands).
7. Click on Save Changes.