Weighted Average Cost of Capital Gardner, Inc., plans to finance its expansion by raising the needed rates: Drone Capital Cost Source Proportion Rate Bonds 30% 13% Preferred stock 10% 9% Common stock 50% 12% Retained earnings 10% 9% 100% Calculate the weighted average cost of capital. Round answers to one decimal place. For example, 0.4567 = 45.7%. Weighted Average Cost of Capital Bonds 0 % Preferred stock 0 % Common stock 096 Retained earnings 0 % 096 Check