Stock Y has a beta of $1\mathrm{.}40$ and an expected return of $15\mathrm{.}2$ percent. Stock Z has a beta of $\mathrm{.}85$ and an expected return of $11\mathrm{.}3$ percent. What would the risk$-$free rate have to be for the two stocks to be correctly priced relative to each other?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$