This course will provide an in-depth look at exchange rates and how they can affect your finances. You will learn about the different types of exchange rates, how they are calculated, and how they can influence the cost of goods and services. You will
From Wikipedia
In finance, an exchange rate is the rate at which one currency will be exchanged for another currency. Currencies are most commonly national currencies, but may be sub-national as in the case of Hong Kong or supra-national as in the case of the euro.