Stock Y has a beta of 0.95 and an expected return of 15.80 percent. Stock Z has a beta of 0.90 and an expected return of 7 percent. If the risk-free rate is 6.0 percent and the market risk premium is 9.8 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.)