Consider the following production and cost data for two products, Big and Little: Big Little Demand in units 10,000 15,000 Contribution margin per unit $24 $18 Machine-hours needed per unit 4 MH 2 MH Labor hours needed per unit 6 DLH 4 DLH The company has 60,000 machine hours available each period. What is the maximum amount of contribution margin the company can make each period? $180,000 $510,000 $270,000 $240,000 $450,000