A bond has a par value of $1,000,6 years to maturity, and a coupon rate of 4.11% ? Assume that coupon payments are made semiannually. Required: a. If the required rate of return is 4.86%, what is the value of the bond? (Enter all values as positive value. Do not round intermediat calculations. Round answers to 2 decimal places.) b. What is the bond's value if the required rate of return increases to 6.09% ? (Enter all values as positive value. Do not round intermediate calculations. Round answers to 2 decimal places.) c. What is the bond's value if the required rate decreases to 4.09% ? (Enter all values as positive value. Do not rc if intermediate calculations. Round answers to 2 decimal places.)