Go to “Settings” > “General” > “System Currency” section.
This section allows you to set the currency for your business. Show List of Currencies will give you the list of currencies available, bear in mind that the data might not be accurate for your country of residence. Click Edit right below the section will let you edit.
Provide the Currency Code(ISO), Main Currency, Fractional Currency for your business.
Save Changes will save the provided information.
Video Tutorial: Change system currency