You were hired as a consultant to Gambino Company, whose target capital structure is 60% debt, 15% preferred, and 25% common equity. The before-tax cost of debt is 8.00%, the cost of preferred is 7.02%, and the cost of retained earnings is 15.75%. The firm will not be issuing any new stock. What is its WACC? State in percentage terms without the percent sign symbol and round to the second decimal place.