Please help!

You are called in as a financial analyst to appraise the bonds of Olsen's Clothing Stores. The $1,000 par value bonds have a quoted annual interest rate of 9 percent, which is paid semiannually. The yield to maturity on the bonds is 10 percent annual interest. There are 20 years to maturity. Use Appendix B and Appendix D for an approximate answer but calculate your final answer using the formula and financial calculator methods. a. Compute the price of the bonds based on semiannual analysis. (Do not round intermediate calculations. Round your final answer to 2 decimal places.) Bond price b. With 15 years to maturity, if yield to maturity goes down substantially to 8 percent, what will be the new price of the bonds? (Do not round intermediate calculations. Round your final answer to 2 decimal places.) New bond price Lance Whittingham IV specializes in buying deep discount bonds. These represent bonds that are trading at well below par value. He has his eye on a bond issued by the Leisure Time Corporation. The $1,000 par value bond pays 4 percent annual interest and has 18 years remaining to maturity. The current yield to maturity on similar bonds is 13 percent. Use Appendix B and Appendix D for an approximate answer but calculate your final answer using the formula and financial calculator methods. a. What is the current price of the bonds? (Do not round intermediate calculations. Round your final answer to 2 decimal places. Assume interest payments are annual.) Answer is complete but not entirely correct. Current price of the bond $ 495.30 b. By what percent will the price of the bonds increase between now and maturity? (Do not round intermediate calculations. Input your answer as a percent rounded to 2 decimal places.) Price increases by %