A firm has a target capital structure that consists of 70% of retained earnings and the rest in debt. The firm's cost of retained earnings is 9.4%. The firm's cost of new debt is similar to the yield to maturity of its existing bonds, which is 5.4%. The firm's tax rate is 40%. Given this information, and given that the firm has no preferred stock, what is the WACC? Answer in percentage without the symbol. Answer: 0(7.6)