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 (3,200 units)			$86,400
Cost of goods sold:
Cost of goods manufactured (3,700 units)	$70,300
Inventory, April 30 (500 units)	(9,500)
Total cost of goods sold			(60,800)
Gross profit			$25,600
Selling and administrative expenses			(14,520)
Operating income			$11,080

If the fixed manufacturing costs were $15,466 and the fixed selling and administrative expenses were $7,110, 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		86,400
Variable cost of goods sold:	54,834
Inventory, April 30	7,410
Total variable cost of goods sold		47,424
Manufacturing margin		????????
Variable selling and administrative expenses		7,410
Contribution margin		31,566
Fixed costs:
Fixed manufacturing costs	15,466
Fixed selling and administrative expenses	7,110
Total fixed costs		22,576
Operating income		8,990