It costs Homer's Manufacturing $0.55 to produce baseballs and Homer sells them for $5 a piece. Homer pays a sales commission of 5% of sales revenue to his sales staff. Homer also pays $12,000 a month rent for his factory and store, and also pays $78,000 a month to his staff in addition to the commissions. Homer sold 70,500 baseballs in June. If Homer prepares a contribution margin income statement for the month of June, what would be his contribution margin? OA. $56,400 B. $352,500 OC. $408,900 OD. $296,100