Stock Y has a beta of 1.30 and an expected return of 15.10 percent. Stock Z has a beta of 70 and an expected return of 8 percent. If the risk-free rate is 4.0 percent and the market risk premium is 8.4 percent, what are the reward-to-risk ratios of Y and Z? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Stock Y Stock Z Reward-to-Risk Ratio % %