Hadley Corporation, which has only one product, has provided the following data concerning its most recent month of operations: Selling price Units in beginning inventory Units produced Units sold Units in ending inventory Variable costs per unit: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative expense Fixed costs: Pixed manufacturing overhead Pixed selling and administrative expense The total contribution margin for the month under variable costing is: Multiple Choice 0 0 0 O $59,400 0