AllCity, Inc., is financed $36\%$ with debt, $6\%$ with preferred stock, and $58\%$ with common stock. Its pretax cost of debt is $6\mathrm{.}4\%,$ its preferred stock pays an annual dividend of $$2\mathrm{.}54$ and is priced at $$25.$ It has an equity beta of $1\mathrm{.}17.$ Assume the risk$-$free rate is $2\mathrm{.}1\%,$ the market risk premium is $7\mathrm{.}1\%$ 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.$)$