Make it easier for foreigners to buy your products, by displaying the prices in the storefront of your shop in their native currency.
If your business covers many countries, you will inevitably face a big problem — the shoppers may fail to understand what is the real price of the goods. They will have to recalculate the prices in their heads or with a calculator. Do you think that is convenient? Hardly! Because of this inconvenience, customers may leave your website without buying anything, thus reducing your income.