Enterprise, Inc. bonds have a 9 percent annual coupon rate. The interest is paid semiannually and the bond mature in eight years. Their par value is $1,000. If the market’s required yield to maturity...

Enterprise, Inc. bonds have a 9 percent annual coupon rate. The interest is paid semiannually and the bond mature in eight years. Their par value is $1,000. If the market’s required yield to maturity on a comparable-risk bond is 8 percent, what is the value of the bond? What is its value if the interest is paid annually?

How to calculate this using mathematical calculation with formulas in finance?