Ninecent Corporation has a target capital structure of $60$ percent common stock, $5$ percent preferred stock, and $35$ percent debt. Its cost of equity is $13$ percent, the cost of preferred stock is $6$ percent, and the pretax cost of debt is $7$ percent. The relevant tax rate is $25$ percent.What is the companys WACC?Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$What is the aftertax cost of debt?Note: Do not round intermediate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.$