The management of LIVE has been reviewing the company's financing arrangements. The current financing mix is P750,000 of common stock, P200,000 of preferred stock (P50 par) and P300,000 of debt. LIVE currently pays a common stock cash dividend of P3. The common stock sells for P50, and dividends have been growing at about 10% per year. Debt currently provides a yield to maturity to the investor of 12%, and preferred stock pays a dividend of 9% to yield 11%. Any new issue of securities will have a flotation cost of approximately 3%. LIVE has retained earnings available for the equity requirement. The company's effective income tax rate is 40%.

Based on this information, the cost of capital for retained earnings is