Aaron Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price s 101 Units in beginning inventory Units produced Units sold Units in ending inventory 3,000 2,550 450 Variable costs per unit: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative expense 25 $ 35 Fixed costs: Fixed manufacturing overhead Fixed selling and administrative expense $62,880 2,600 The total contribution margin for the month under variable costing is