What is the profit margin per unit for Brand X$?$

Hint: Compute the price at which the wholesaler sells the product to the retailer $($use retailer margin for this$).$ Then, compute the price at which Brand X sells the product to the wholesaler $($use wholesaler margin for this$).$ Then, compute total variable cost per unit sold for Brand X$.$

Group of answer choices

$$0\mathrm{.}59$

$$0\mathrm{.}67$

$$0\mathrm{.}12$

$$0\mathrm{.}42$

$$0\mathrm{.}33$