Stock Y has a beta of 1.15 and an expected return of 15.65 percent. Stock Z has a beta of .60 and an expected return of 7 percent. If the risk-free rate is 4.0 percent and the market risk premium is 9.2 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.)