You are going to invest in a stock mutual fund with a 4.5 percent front-end load and a 1.55 percent expense ratio. You also can invest in a money market mutual fund with a 2.5 percent return and an expense ratio of .40 percent. If you plan to keep your investment for 2 years, what annual return must the stock mutual fund earn to exceed an investment in the money market fund? What if your investment horizon is 8 years? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places. Omit the "%" sign in your response.)