Weighted Average Cost of Capital Austin, Inc. plans to finance its expansion by raising the needed investment capital from the following sources in the indicated proportions and respective capital cost rates the flluing soures in Source Bonds Preferred stock Common stock Retained earnings Proportion 45% 1096 25% 20% 1006 Rate 13% 1196 17% 15% Calculate the weighted average cost of capiha. Round answers to one decimal place. For exa nnple, 0.457-45.7%. Weighted Average Cost of Capital Bonds Preferred stock 96 Common stock Retained earnings