BSA's capital structure consists of: (1) 20% accounts payable and other non-interest-bearing debt, (2) 35% bank debt on which they pay 10% interest, (3) 5% preferred stock, (4) 20% retained earnings, and (5) 20% stock at par plus additional paid in capital. They are in the 35% tax bracket. They have outstanding preferred stock with a P75 coupon rate for every P1,000 of par value. They have estimated their cost of common equity at 15.5%. What is their present WACC (IN PERCENTAGE %)?