Bond J has a coupon rate of 4%. Bond K has a coupon rate of 14%. Both bonds have 17 years to maturity, a par value of $1000 and a yield to maturity of 8% , and both make semi annual payments. If...

Bond J has a coupon rate of 4%. Bond K has a coupon rate of 14%. Both bonds have 17 years to maturity, a par value of $1000 and a yield to maturity of 8% , and both make semi annual payments. If interest rates suddenly rise by 2%, what is the percentage price change in these bonds? What if rates suddenly fall by 2% instead? What does this problem tell you about interest rate risk of lower coupon bonds?

Excel would be good. Thanks.