Both bond A and bond B have 6.8 percent coupons and are priced at par value. Bond A has 9 years to maturity, while bond B has 15 years to maturity. If interest rates suddenly rise by 1.2 percent, what is the percentage change in price of bond A and bond B? If interest rates suddenly fall by 1.2 percent instead, what would be the percentage change in price of bond A and bond B?

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