TAFKAP Industries has $4$ million shares of stock outstanding selling at $$15$ per share, and an issue of $$24$ million in $8\mathrm{.}5$ percent annual coupon bonds with a maturity of $15$ years, selling at $104$ percent of par. Assume TAFKAP$$s weighted average tax rate is $21$ percent, it can make full use of the interest tax shield, and its cost of equity is $13\mathrm{.}5$ percent.

What is TAFKAP$$s WACC? $($Do not round intermediate calculations. Round your final answer to $2$ decimal places.$)$