Weighted average cost of capital The capital structure for the Canon Corporation is provided here. The company plans to maintain its debt structure in the future. If the firm has an after-tax cost of debt of 5.5 percent, a cost of preferred stock of 10.8 percent, and a cost of common stock of 18.5 percent, what is the firm's weighted average cost of capital? The firm's weighted average cost of capital is 1%. (Round to two decimal places )