Refer to Table $10-1,$ which is based on bonds paying $10$ percent interest for $20$ years. Assume interest rates in the market $($yield to maturity$)$ decrease from $14$ to $10$ percent.

a$.$ What is the bond price at $14$ percent?

Bond price

b$.$ What is the bond price at $10$ percent?

Bond price

c$.$ What would be your percentage return on the investment if you bought when rates were $14$ percent and sold when rates we percent?

Note: Do'not round intermediate calculations. Input your answer as a percent rounded to $2$ decimal places.

Return on investment

$\%$