Problem 13.11 (Solution Video) Cullumber Co, has a capital structure, based on current market values, that consists of 30 percent debt, 10 percent preferred stock, and 60 percent common stock. I the retums required by investors are 8 percent, 10 percent, and 15 percent for the debt, preferred stock, and common stock respectively hat is Cullumber's atter-tax w ACC? Assume that the firm's marginal tax rate is 40 percent. Rou d i nal answer to 2 decimalplaces eg. 15.25% After tax WACC Click if you would like to Show Work for this question: nhow Work Question Attempts: 0 of 2 used AVE FOR LATEN