Your company has a target capital structure of 49 percent common stock, 19 percent preferred stock, and the remaining percent debt. Its cost of equity is 16.8 percent, the cost of preferred stock is 10 percent, and the pretax cost of debt is 6.9 percent. The relevant tax rate is 15 percent. What is the company's WACC? (Do not round any intermediate calculations. List your answer as a percent, round your final answer to 2 decimsl places and enter it in the box below.)