Bond J has a coupon of 5 percent. Bond K has a coupon of 9 percent. Both bonds have 15 years to maturity and have a YTM of 5.2 percent. a. If interest rates suddenly rise by 1.4 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.)

If interest rates suddenly fall by 1.4 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.)