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The price to exchange one U.S. dollar for one unit of a foreign currency is called an exchange rate. The exchange rate of the U.S. dollar varies for different foreign currencies, which fluctuate daily based on a number of factors.
Video: Currency Appreciation & Depreciation: Effects of Exchange Rate Changes. Find out how changes in the exchange rate can affect the economy and your own individual situation. Discover how these currency changes can increase and decrease your purchasing power and standard of living. Currency Appreciation & Depreciation: Effects of Exchange Rate Changes.