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 58% 9.27%

Preferred Stock 13% 13.86%

Common Stock Please calculate it 12.74%