Hi @Thasheda ,
Actually there is no direct way to change currency, but you need to contact Shopify support! They will change just right away!
To change your currency, you should follow these steps below:
Step 1: Select Settings
Step 2: Choose General
Step 3: Click change formatting
Step 4: Make adjustment
Step 5: Save changes
For details with illustration, read this guide: https://avada.io/shopify/docs/how-change-currency-formatting-shopify.html
Hope it helps!