Fama's Llamas has a weighted average cost of capital of $9\mathrm{.}7$ percent. The company's cost of equity is $13$ percent and its pretax cost of debt is $7\mathrm{.}2$ percent The tax rate is $22$ percent. What is the company's debt$-$equity ratio? $($Do not round intermediate calculations and round your answer to $4$ decimal places, e$.$g$.,32\mathrm{.}1616.)$Answer is complete but not entirely correct.

Debt$-$equity ratio