Refer to Table 10-1. which is based on bonds paying 10 percent interest for 20 years Assume interest rates in the maricet (yield to maturity) increase from 8 to 12 percent What is the bond price at 8 percent'? What is the bond price at 12 percent'? What would be your percentage return on the investment if you bought when rates were 8 percent and sold when rates were 12 percent'? (Do not round intermediate calculations. Input your answer as a percent rounded to 2 decimal places. Enter the value as a positive amount.)