A firm has determined its optimal capital structure, which is composed of the following sources and target market value proportions: Source of Capital Long-term debt Preferred stock Common stock equity Target Market Proportions 30% 5 65 Debt: 5 years ago. The firm sell a 20-year, $1,000 par value, 7 percent bond for $990. A flotation cost of 2 percent of the face value would be required in addition to the discount of $10. Preferred Stock: The firm has determined it can issue preferred stock at $65 per share par value. The stock will pay an $9.00 annual dividend. The cost of issuing and selling the stock is $4 per share. Common Stock: The firm's common stock is currently selling for $40 per share. The dividend expected to be paid at the end of the coming year is $5.07. Its dividend payments have been growing at a constant rate for the last five years. Five years ago, the dividend was $3.45. It is expected that to sell, a new common stock issue must be underpriced at $3 per share and the firm must pay $2 per share in flotation costs. Additionally, the firm's marginal tax rate is 35 percent. Calculate the firm's weighted average cost of capital assuming the firm has exhausted all retained earnings