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

Selling price	$ 111
Units in beginning inventory	300
Units produced	2,000
Units sold	2,200
Units in ending inventory	100

Variable costs per unit:
Direct materials	$ 29
Direct labor	$ 30
Variable manufacturing overhead	$ 4
Variable selling and administrative expense	$ 9
Fixed costs:
Fixed manufacturing overhead	$34,000
Fixed selling and administrative expense	$39,600

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.

What is the unit product cost for the month under variable costing?

Multiple Choice

$72 per unit

$89 per unit

$63 per unit

$80 per unit