i have one more answer left before i run out of chances for the problem. i will upvote correct answers!!

Killer Burgers' copital structure consists of 20 percent debt, 30 percent preferred stock, and 50 percent commen stock. If Killer raises riew capital, its after-tsk cost of debt wiIf be 2.5 percent, its cost of preferred stock will be 9 percent, its cost of retained earnings will bet 13.8 percent, and its cost of new common equity will be 15,8 percent. Killer must raise 5190,000 . If manogement expects the firm to generate 590,000 in retained earnings this yeas, what is Killer's marginal cost of capital to raise the needed funds? Round your answer to two decimal places