You can update the currency that your services and/or classes display in by going to your Account Settings Payment Settings and updating the Currency from your business details that are listed there. To get to your Account Payment Settings, simply click on your name dropdown in the top right the Payments dropdown and select the "Account Payment Settings" option:
From your account settings page, click the Edit button and select the currency dropdown and choose which currency you want to set your account to from the options provided there. Please note: If you do not see the currency that you need listed here, email us at email@example.com and we can add it for you.
Once you've selected the currency you want to change your account to, just press the "Save Changes" button in the bottom right to commit the changes to your account.