(TCO B) Answer the following question using the information below. Nortrika Company sells several products. Information of average revenue and costs is as follows: Selling price per unit $34.00 Variable costs per unit: Direct material $6.00 Direct manufacturing labor $2.40 Manufacturing overhead $0.60 Selling costs $2.00 Annual fixed costs $97,400 The contribution margin per unit is _____.

$6

$7

$12

$16