Problem $11-18$ Reward$-$to$-$Risk Ratios

Stock Y has a beta of $1$ and an expected return of $12\mathrm{.}4\%.$ Stock Z has a beta of $0\mathrm{.}06$ and an expected return of $8\mathrm{.}2.$ If risk free is $5\mathrm{.}2\%$ and the market risk premium is $6\mathrm{.}4\%,$ the reward$-$to$-$risk ratios for stocks Y and Z are $\_\_$ and $\_\_\_$ percent, respectively. Since the SML reward$-$to$-$risk is $\_\_\_\%.$ Stock Y is Undervalued and Stock Z is overvalued. $($Do not round intermediate calculations and enter your answers as a percent rounded to $2$ decimal places,e$.$g$.32\mathrm{.}16)$