AllCity, Inc., is financed 40% with debt, 10% with preferred stock, and 50% with common stock. Its pretax cost of debt is 6%, its preferred stock pays an annual dividend of $2.50 and is priced at $30. It has an equity beta of 1.1. Assume the risk-free rate is 2%, the market risk premium is 7% and AllCity's tax rate is 25%. What is its after-tax WACC? Note: Assume that the firm will always be able to utilize its full interest tax shield. The WACC is %. (Round to two decimal places.)