Given the following information on Big Brothers, Inc. capital structure, compute the companys weighted average cost of capital (WACC). The companys marginal tax rate is 40%. Round the answer to two decimal places in percentage form. (Write the percentage sign in the "units" box) Type of Capital Percent of Capital Structure Before-Tax Component Cost Bonds 30% 9.25% Preferred Stock 18% 15.12% Common Stock Please calculate it 16.20%