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A manufacturer's contribution margin income statement for the year follows. Prepare contribution margin income statements for each of the three separate cases below. 1. The 13,000 units produced and sold increases to 13,500 units and fixed costs increase by $7,000. 2. Unit selling price decreases by 7% and units produced and sold increase by 7%. Hint A unit increase has both a sales and costs impact 3. Fixed costs increase by $21,000. vatiable costs per unit decrease by $1, and units produced and soid increase by 600 1. The 13,000 units produced and sold increases to 13,500 units and fixed costs increase by $7,000 3. Fixed costs increase by $21,000, variable costs per unit decrease by $1, and units produced and sold increase by 600 . Contribution Margin Income Statement 3. Fixed costs increase by $21,000, variable costs per unit decrease by $1, and units produced and sold increase by 600