Answer:
Marginal Cost = $19
Marginal Profit = $6
Explanation:
Break even quantity = [tex]\frac{fixed cost}{contribution per unit}[/tex]
80 = [tex]\frac{480}{contribution}[/tex]
Contribution = [tex]\frac{480}{80}[/tex] = 6 per unit
Contribution = Sales - Variable cost = $25 - VC = $6
$25 - $6 = VC = $19
Marginal cost is cost incurred for every additional unit produced, i.e. variable cost = $19, as fixed cost remains constant.
Marginal revenue is additional revenue on sale of every unit = contribution per unit = $6
Marginal cost = $19
Marginal Profit = $6