AllCity, Inc., is financed 45% with debt, 8% with preferred stock, and 47% with common stock. Its pretax cost of debt is 5.7%, its preferred stock pays an annual dividend of $2.51 and is priced at $34. It has an equity beta of 1.12. Assume the risk-free rate is 1.9%, the market risk premium is 7.1% 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.)