Required information [The following information applies to the questions displayed below) Trevino Company makes and sells products with variable costs of $24 each. Trevino incurs annual fixed costs of $455,280. The current sales price is $108. Note: The requirements of this question are interdependent. For example, the $336,000 desired profit Introduced in Requirement c also applies to subsequent requirements. Likewise, the $80 sales price introduced in Requirement d applies to the subsequent requirements Required a. Determine the contribution margin per unit. Contribution margir per unit