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Calculate the duration of a $1000.7% coupon bond with three years to maturity. Assume that all market interest rates are 12%. O 2.79 O 2.18 O 2.56 O 2.96 What is the expected price change for a 7% coupon bond with three years to maturity and face value of $1000 if interest rates drop from 12% to 11.5% 1.16% 0.78% 1.25% 1.56%