To change the currency or site language, go to the bottom right side of the screen.
From there, you will have the option to change the language on the website. It is to the left of the "Help" tab.
To change the currency, click on the icon of the currency being displayed, and choose your desired currency from the list. You will find this icon to the left of the "Help" tab.
Please note that the currency is only displayed for your reference. Your actual payment will be processed in the currency of your current location: in USD (if you are based in the USA) or in EUROS (for any other location). Also, note that conversion fees may also be charged to your credit card.