Now suppose market interest rates have risen over the course of the year. Specifically, the bonds in your portfolio experienced the following changes. Interest Rate a Year Ago (96) Interest Rate Now (96) 12 10 5.5 3. Calculate the approximate change in the price of each bond in your portfolio. (Hint) You may want to use the Equation (2) in the Web Appendix to Cho4. %A in P Portfolio Weight %) Suppose you are holding a portfolio of bonds that consists of the following four bonds Bond A $1,000 twenty-year 15% coupon bond with the interest rate of 1256 B. A $1,000 eight-year discount bond with the interest rate of 7% C. A $1,000 ten-year 129 coupon bond with the interest rate of 9% D. A $1,000 five-year 4% coupon bond with the interest rate of 5% (Note) Round your answers to 2 decimal places. 1. Calculate the durations of the four bonds in the portfolio. Using a spreadsheet, construct a table for each bond, such as TABLE 1 in Web Appendix to Chapter 4, and attach the spread sheet tables to your answer sheet. Bond Duration &.12 2.00 6.64 4.62