Aaron Corporation, which has only one product, has provided the following data concerning its most recent month of operations:

Selling price	$102
Units in beginning inventory	0
Units produced	4,800
Units sold	3,980
Units in ending inventory	820

Variable costs per unit:
Direct materials	$ 18
Direct labor	$ 44
Variable manufacturing overhead	$ 7
Variable selling and administrative expense	$ 4
Fixed costs:
Fixed manufacturing overhead	$50,600
Fixed selling and administrative expense	$ 2,500

The total contribution margin for the month under variable costing is: