Wayco Industrial Supply has a pre-tax cost of debt of 7.6 percent, a cost of equity of 14.3 percent, and a cost of preferred stock of 8.5 percent. The firm has 220,000 shares of common stock outstanding at a market price of $27 a share. There are 25,000 shares of preferred stock outstanding at a market price of $41 a share. Wayco raised $556,600 from bonds. The company's tax rate is 37 percent. What is the firm's weighted average cost of capital?