please not excel forms just writing

Bond X has a coupon of 5.2 percent. Bond Z has a coupon of 9.2 percent. Both bands have 15 years to maturity and have a YTM of 7.4 percent. a. If interest rates suddenly rise by 1.6 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.) b. If interest rates suddenly fall by 1.6 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.) c- What is your conclusion? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)