Astair, Inc. reported sales of $8,000,000 for the month and incurred variable expenses totaling $5,600,000 and fixed expenses totaling $1,440,000. The company has no beginning or ending inventories. A total of 80,000 units were produced and sold last month. If sales increase by 200 units, how much should net income increase? C $1,600 A) $6,000 C $10,000 C) $19,200