Columbia Corporation Income Statement For the Month ended November 30 Sales ($23 per unit) Variable expenses: $933,800 Variable cost of goods sold Variable selling expense Total variable expenses Contribution margin Fixed expenses: 609,000 121,800 730,800 203,000 Manufacturing Selling and administrative 142,000 35,500 177,500 $ 25,506e Total fixed expenses Net operating income During November, 35,500 units were manufactured and 8,670 units were in beginning inventory. Variable production costs have remained constant on a per unit basis over the past several months Under absorption costing, for November the company would report a