Now suppose mar se 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 (9) Interest Rate Now (%) 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 Ch04. %A in P suppose you are holding a portfolio of bonds that consists of the following four bonds. A B. Bond A $1,000 twenty-year 15% coupon bond with the interest rate of 12% A $1,000 eight-year discount bond with the interest rate of 7% $1,000 ten-year 12% coupon bond with the interest rate of 9% A $1,000 five-year 4% coupon bond with the interest rate of 5% Portfolio Weight (%) 30 20 15 C A D. (Note) Round your answers to 2 decimal places. Calculate the durations of the four bonds in the portfolio. Using a spreadsheet, construct a table for each bond, TABLE 1 in Web Appendix to Chapter 4, and attach the spread sheet tables to your answer sheet. Bond Duration &.12 3.00 6.64 4.62