Ped Company has debt with a yield to maturity of 6.8%, a cost of equity of 13.9%, and a cost of preferred stock of 9.4%. The market values of its debt, preferred stock, and equity are $10.1 milion $2.7 million and $15.8 million, respectively, and its tax rate is 40%. 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.)