Leist Clinic uses client-visits as its measure of activity. During September, the clinic budgeted for 2,200 client-visits, but its actual level of activity was 2,170 client-visits. The clinic has provided the following data concerning the formulas to be used in its budgeting:

	Fixed element per month			Variable element per client-visit
Revenue		-		$	50.80
Personnel expenses	$	26,600		$	15.60
Medical supplies		1,400			9.40
Occupancy expenses		7,600			2.40
Administrative expenses		5,300			0.10
Total expenses	$	40,900		$	27.50

The net operating income in the flexible budget for September would be closest to:

$9,661

$5,367

$5,516

$10,360