Pfd Company has debt with a yield to maturity of 6.8%, a cost of equity of 13.3%, and a cost of preferred stock of 10.3%. The market values of its debt, preferred stock, and equity are $15.3 million, 52.6 million, and $16.1 million, respectively, and its tax rate is 35%. What is this firm's after-tax WACC? Note: Assume that the firm will always be able to utilize its full interest tax shield. Pid's WACC is %. (Round to two decimal places.)