Pfd Company has debt with a yield to maturity of 5.8%, a cost of equity of 15.5%, and a cost of preferred stock of 9.8%. The market values of its debt, preferred stock, and equity are $13.8 million, 53.1 million, and $16.5 million, respectively, and its tax rate is 38%. What is this firm's WACC? Note: Assume that the firm will always be able to utilize its full interest tax shield. Pfd's WACC is %. (Round to two decimal places.)