A firm issues $500 million in twenty-year bonds with an annual coupon rate of 5%. The firm makes a final payment of \$145 million on the tenth and final coupon date. If the firm uses a sinking fund to repurchase some of the bond issue on each coupon payment date, what percentage of the issue must they repurchase each year? 4.1% 4% 3.8% 3.9% 3.7% A firm issues $500 million in twenty-year bonds with an annual coupon rate of 5%. The firm makes a final payment of \$145 million on the tenth and final coupon date. If the firm uses a sinking fund to repurchase some of the bond issue on each coupon payment date, what percentage of the issue must they repurchase each year? 4.1% 4% 3.8% 3.9% 3.7%