Johansson Company developed the following static budget at the beginning of the company's accounting period:

Revenue (8,600 units)	$17,200
Variable costs	4,300
Contribution margin	$12,900
Fixed costs	4,300
Net income	$ 8,600

If the actual volume of sales was 9,000 units, the flexible budget would show variable costs of (Do not round intermediate calculations.):

$8,600.

$4,300.

$18,000

$4,500.