Given the following information on Big Brothers, Inc. capital structure, compute the company’s weighted average cost of capital (WACC). The company’s 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 41% 11.05%
Preferred Stock 19% 13.65%
Common Stock Please calculate it 18.00%