Schrute Farm Sales buys portable generators for $490 and sells them for $770. He pays a sales commission of 5% of sales revenue to his sales staff Mr. Schrute pays $7.000 a month rent for his store, and also pays $2,100 a month to his staff in addition to the commissions. Mr. Schrute sold 400 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 $211,400 OB. $308,000 OC. $519,400 O.D. $96,600