3. A corporate bond with 12 coupons remaining has a coupon rate of 8% paid semiannually, most recently paid a coupon 96 days ago (the next coupon is 84 days away) and has a yield-to-maturity of 5.50%. Assuming a 5 bps change in the yield-to-maturity: a. What the bonds approximate modified duration? b. What is the bonds approximate Macaulay duration?