Pfd Company has debt with a yield to maturity of $6\mathrm{.}3\%,$ a cost of equity of $15\mathrm{.}1\%,$ and a cost of preferred stock of $9\mathrm{.}5\%.$ The market values of its debt, preferred stock, and equity

are $$14\mathrm{.}4$ million, $$3\mathrm{.}3$ million, and $$15\mathrm{.}4$ million, respectively, and its tax rate is $22\%.$ What is this firm's after$-$tax WACC?

Note: Assume that the firm will always be able to utilize its full interest tax shield.

Pfd$\text{'}$s WACC is $|\%.($Round to two decimal places.$)$