$($Related to Checkpoint $14\mathrm{.}1)($Weighted average cost of capital$)$ The target capital structure for QM Industries is $39$ percent common stock, $11$ percent preferred stock, and $50$ percent debt. If the cost of common equity for the firm is $17\mathrm{.}8$ percent, the cost of preferred stock is $10\mathrm{.}2$ percent, the before$-$tax cost of debt is $8\mathrm{.}7$ percent, and the firm's tax rate is $35$ percent, what is QM$\text{'}$s weighted average cost of capital?

QM$\text{'}$s weighted average cost of capital is

$\%.($Round to three decimal places.$)$