Pfd Company has debt with a yield to maturity of 5.9 %, a cost of equity of 12.6 %, and a cost of preferred stock of 8.6 %. The market values of its? debt, preferred? stock, and equity are $11.7, $ 2.8 million, and $16.1 ?million, respectively, and its tax rate is 38 %. What is this? firm's after-tax? WACC?