You were hired as a consultant to Gambino Company, whose target capital structure is 30% debt, 15% preferred, and 55% common equity. The before-tax cost of debt is 9.00%, the cost of preferred is 7.87%, ard the cost of retained earnings is 19.50%. The tax rate is 24.00%. 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. (Thus, 12.98756% would be written as 12.99 to be correct)