From Google Analytics Blog: “Multi-Currency support for eCommerce provides Google Analytics users with the ability to track transaction metrics (total revenue, tax, and shipping & handling) in multiple local currencies within a single web property. And Google Analytics will convert them into the one currency based on your profile setting. This provides key benefits for e-commerce brands looking to conduct analysis across an international customer base …” http://analytics.blogspot.com/2013/02/multi-currency-e-commerce-support-in.html