On April 30, the end of the first month of operations, Joplin Company prepared the following income statement, based on the absorption costing concept: Joplin Company Absorption Costing Income Statement For the Month Ended April 30 Sales (2,700 units) $48,600 Cost of goods sold: Cost of goods manufactured (3,100 units) $40,300 Inventory, April 30 (400 units) (5,200) Total cost of goods sold (35,100) Gross profit $13,500 Selling and administrative expenses (8,170) Operating income $5,330 If the fixed manufacturing costs were $9,672 and the fixed selling and administrative expenses were $4,000, prepare an income statement according to the variable costing concept. Round all final answers to whole dollars. Joplin Company Variable Costing Income Statement For the Month Ended April 30 Sales $Sales 48,600 Variable cost of goods sold: Variable cost of goods manufactured $Variable cost of goods manufactured 30,628 Inventory, April 30 Inventory, April 30 5,200 Total variable cost of goods sold Total variable cost of goods sold 40,300 Manufacturing margin $Manufacturing margin 44,648 Variable selling and administrative expenses Variable selling and administrative expenses 3,952 Contribution margin $Contribution margin Fixed costs: Fixed manufacturing costs $Fixed manufacturing costs Fixed selling and administrative expenses Fixed selling and administrative expenses Total fixed costs Total fixed costs Operating income $Operating income