During $1995,$ the Mexican peso exchange rate rose from $5\mathrm{.}33$ peso$/$$ to $7\mathrm{.}64$ peso$/$$$.$ At the

same time, US inflation was approximately $3\%$ in contrast to Mexican inflation of about $48\mathrm{.}7\%.$

a$.$ By how much did the nominal value of the peso change during $1995?$

b$.$ By how much did the real value of the peso change over this period?