Carrabelle Company has provided the following information:

Sales price per unit

$$42$

$12$

$$14,000$

Variable cost per unit

Fixed costs per month

Calculate the contribution margin ratio. $($Round your answer to two decimal places.$)$

A$.55\mathrm{.}56\%$

B$.71\mathrm{.}43\%$

C$.28\mathrm{.}57\%$

D$.77\mathrm{.}78\%$