On August 8, 2000, Zimbabwe changed the value of the Zim dollar from Z$38/US$ to Z$50/US$.
a. What was the original U.S. dollar value of the Zim dollar? What is the new U.S. dollar value of the Zim dollar?
b. By what percentage has the Zim dollar devalued (revalued) relative to the U.S. dollar?
c. By what percentage has the U.S. dollar appreciated (depreciated) relative to the Zim dollar?