In order to create services in multiple currencies, you must first establish your currency of choice. You can read more here - How to Change Currency or follow through with the easy process below:
How To Create Services in Multiple Currencies?
On your Dashboard, go to Settings
Select Modules and Extensions
Select Billing
Scroll down and look for Currency
Select your desired billing Currency
Click on Save Changes
Now with the selected Currency, you can go ahead and create a service with that Currency. To do so, you must:
Go back to your Dashboard
Under Services, click on All Services
On the top right corner, select "Create Service"
Select the Service Type, and click Next
Input the Service Details and click on Next
On the Pricing Details, notice that the currency is now different
Add in your price and other details
Finalize your Request form details
Hit Save
NOTE: In cases where you'd like to create multiple currency services, you must switch again to another currency and create a separate service with similar details but with a different currency.