You've now got a set of countries, a base price, and a local pricing metric, and it's time to break out the spreadsheets. For each product you have, for each country, add your current product price there, and add another column using the conversion rates to convert these prices to one common currency. You can add in your real sales data, for example, to see how it might affect revenue, or put the prices of multiple products together so you can work out what your pricing page will look like for users from a given country.