Suppose that the six$-$month interest rate in the United States is $1\%,$ while the six$-$month interest rate in Mexico is $2\%.$ Further, assume the spot rate of the peso is $$0\mathrm{.}20.$

According to interest rate parity $($IRP$),$ the forward rate premium of the peso with respect to the U$.$S$.$ dollar should be $?\%($not annualized$).$