Exchange rate relationships between the U.S. dollars the euro have been quite volatile. When the euro began trading at the beginning of 1999, it was valued at 1.18 U.S. dollars. By late-2000, a euro was worth only $.82. However, by the mid-2008, a value of a euro reach $1.55. Calculate the percentage changes in the value of a euro from its initial value to its late-2000 value and its high mid-2008 value.