On January 1, 2007, the Mexican Peso/U.S. exchange rate was Ps 10.6250 = $1. By January 1, 2017, the exchange rate stood at Ps 19.1476 = $1.
a. By how much has the Mexican peso appreciated ot depreciated against the dollar over this 10-year period?
b. By how much has the dollar appreciated or depreciated against the peso over this period?