SunlandCo. has a capital structure, based on current market values, that consists of26percent debt,3percent preferred stock, and71percent common stock. If the returns required by investors are10percent,10percent, and15percent for the debt, preferred stock, and common stock, respectively, what isSunland's after-tax WACC? Assume that the firm's marginal tax rate is 40 percent.(Round final answer to 2 decimal places, e.g. 15.25%.)