An 2.4% (semiannual) coupon T-bond is quoted at $975 (semiannual). 90 days has passed since the last coupon payment. Suppose there are 182 days between coupon payments, what is the sale price of this T-bond?

Suppose the discount rate is 10%. You bought a 10-year, 8% coupon bond with 7 years after it is issued. After holding it for 2 years, the discount rate changed to 12% and sold the bond right after the discount rate change. What is your HPR (Assume par value is $1000 and semiannual coupons)?