Gardner, 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: Capital Cost Source Proportion Rate Bonds 40% 14% Preferred stock 20% 10% Common stock 30% 13% Retained earnings 10% 10% 100% Calculate the weighted average cost of capital. Round answers to one decimal place. For example, 0.457 = 45.7%. Weighted Average Cost of Capital Bonds Answer 0 Preferred stock Answer 0 Common stock Answe