Alhamra Technology's capital structure is as follows [in %]: Debt 30; Preferred stock 20; Common equity 50; The before tax cost of debt is 8 percent and tax rate is 50%; the cost of preferred stock is 10 percent; and the cost of common equity (in the form of retained earnings) is 19 percent. Calculate Alhamra Technology's weighted average cost of capital [after tax]? ANSWER FORMAT: 0.123 [do not convert in %]