Cost of debt with fees. Dunder-Mifflin Inc. (DMI) is selling 600,000 bonds to raise money for new magazines to be published in the coming year. The bonds will pay a coupon rate of 11.7% on semiannual payments. The par value of the bond is $100, and the bond will mature in thirty years. DMI hires an investment banker for the sale of the 600,000 bonds. The investment banker charges a fee of 2% on each bond sold. What is the cost of debt to DMI after the investment banker