Required information The following is Allison Corporation's contribution format income statement for last month: Sales Lessi variable expenses Contribution margin Less: fixed expenses bperating income $800,000 300,000 500.000 400,000 $100,000 The company has no beginning or ending inventories. The company produced and sold 10,000 units last month. If sales increase by 200 units, by how much should before-tax profits increase? Multiple Choice O $16,000 $5,000 $2,000 $10,000