Nelson Corporation, which has only one product, has provided the following data concerning its most recent month of operations Selling price $ 122 Units in beginning inventory Units produced Units sold Units in ending inventory 370 6,510 6,480 400 Variable costs per unit: Direct materials Direct labor Variable manufacturing overhead Variable selling and administrative19 Fixed costs Fixed manufacturing overhead Fixed selling and administrative $43 $ 24 2 $143,220 $64,800 The company produces the same number of units every month, although the sales in units vary from month to month. The company's variable costs per unit and total fixed costs have been constant from month to month. Required a. Prepare a contribution format income statement for the month using variable costing. Unit product cost under variable costing 43 Direct materials Direct labor Variable manufacturing overhead Variable costing unit product cost 24 69