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 - 39% - 9.49%

Preferred Stock - 11% - 12.54%

Common Stock - Please calculate it - 15.02%