i need help with this first part

Bond J has a coupon of 6 percent. Bond K has a coupon of 10 percent. Both bonUs have 15 years to maturity and have a YTM of 6.6 percent. a. If interest rates suddenly rise by 2.4 percent, what is the percentage price change of these bonds? ( A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Answer is complete but not entirely correct. b. If interest rates suddenly fall by 2.4 percent, what is the percentage price change of these bonds? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Answer is complete and correct. Bond J has a coupon of 6 percent. Bond K has a coupon of 10 percent. Both bonUs have 15 years to maturity and have a YTM of 6.6 percent. a. If interest rates suddenly rise by 2.4 percent, what is the percentage price change of these bonds? ( A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Answer is complete but not entirely correct. b. If interest rates suddenly fall by 2.4 percent, what is the percentage price change of these bonds? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.) Answer is complete and correct