Schrute Farm Sales buys portable generators for $450 and sells them for $750. He pays a sales commission of 6% of sales revenue to his sales staff Mr. Schrute pays $5,000 a month rent for his store, and also pays $2.200 a month to his staff in adotion to the commissions. Mr. Schrute sold 600 generators in June. If Mr. Schrute prepares a contribution margin income statement for the month of June, what would be his contribution margin? O A $157,500 OB. $742,500 OC. $450,000 OD. $292,500