Cost of debt. Dunder-Mifflin, Inc. (DMI) is selling 600,000 bonds to raise money for the publication of new magazines in the coming year. The bond will pay a coupon rate of 15.7% with semiannual payments and will mature in 30 years. Its par value is $100. What is the cost of debt to DMI if the bonds raise the following amounts (ignoring issuing costs)? a. $58,128,000 b. $57,990,000 c. $61,392,000 d. $71,694,000 a. What is the cost of debt to DMI if the bonds raise $58,128,000? % (Round to two decimal places.)