please include all steps

27. The bonds of Micromachines have an 8% annual coupon, face value of $1000 and mature in four years. Bonds of equivalent risk yield 12%. The company is having cash flow problems and has asked its bondholders to accept the following deal: The firm would like to make the next 2 coupon payments at half the scheduled amount, and make up for this by adding $80 to the final coupon payment. If the company goes ahead with this plan what will be the new price of the bond? Choose the answer that is closest to correct. A. $686 B. $878 C. $858 D. $861