Sunrise, Incorporated, is trying to determine its cost of debt. The firm has a debt issue outstanding with $19$ years to maturity that is quoted at $94$ percent of face value. The issue makes semiannual payments and has an embedded cost of $8$ percent annually.

a$.$ What is the company's pretax cost of debt? $($Do not round Intermedlate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,3216.)$

b$.$ If the tax rate is $25$ percent, what is the aftertax cost of debt? $($Do not round Intermedlate calculations and enter your answer as a percent rounded to $2$ decimal places, e$.$g$.,32\mathrm{.}16.)$

a$.$ Pretax cost of debt

$1$

b$.$ Aftertax cost of debt

$\%$