For 2020 , Winters Manufacturing uses machine-hours as the only overhead cost-allocation base. The direct cost rate is $3.00 per unit. The selling price of the product is $18.00. The estimated manufacturing overhead costs are $240,000 and estimated 40,000 machine hours. The actual manufacturing overhead costs are $300,000 and actual machine hours are 50,000 . What is the profit margin earned if each unit requires two machine-hours? 50.00% 80.00% 40.00% 16.67%