Today, the spot exchange rate between the Mexican peso and the U$.$S$.$ dollar is MP$18\mathrm{.}0300/5.$ Twenty years ago, the spot exchange rate was MP$10\mathrm{.}9400/$$$.$ What is the percentage appreciation$/$depreciation of the Mexican peso over this period?

$39\mathrm{.}3\%$ depreciation

$64\mathrm{.}8\%$ appreciation

$64\mathrm{.}8\%$ depreciation

$39\mathrm{.}3\%$ appreciation