How do we calculate our currency exchange rates? 

Balletclass.com offer payment for subscriptions and pay-per-view classes in either $USD, £GBP or €EUR. We use $USD as our base currency and make the exchange calculations from current price of $1USD to £GBP and €EUR. As we use $USD as our base currency, if you subscribe monthly in £GBP or €EUR, the amount you pay will vary slightly as the exchange rate changes.

We use currencylayer.com to calculate our currency conversions. Exchange rates are automatically updated every 12hours via currencylayer.com.
We also use Geolocating to serve users their local currency where possible.
You can manually select which currency you would like to pay in via the currency selector drop downs which are placed around the website as well as in the footer on every page.