Both Bond Sam and Bond Dave have 9 percent coupons, make semiannual payments, and are priced at par value. Bond Sam has 3 years to maturity, whereas Bond Dave has 12 years to maturity. If interest rates suddenly rise by 3 percent, what is the percentage change in the price of Bond Sam? 7.38% 7.36% 7.52% 7.96% If interest rates suddenly rise by 3 percent, what is the percentage change in the price of Bond Dave? 23.19% 20.26% 18.81% 18.83% If rates were to suddenly fall by 3 percent instead, what would the percentage change in the price of Bond Sam be then