Tolentino Kennel uses tenant-days as its measure of activity; an animal housed in the kennel for one day is counted as one tenant-day. During November, the kennel budgeted for 3,900 tenant-days, but its actual level of activity was 3,950 tenant-days. The kennel has provided the following data concerning the formulas used in its budgeting and its actual results for November:

Data used in budgeting:

	Fixed element per month	Variable element per tenant-day
Revenue		$31.20
Wages and salaries	$2,700	$6.90
Expendables	900	11.20
Facility expenses	8,200	3.10
Administrative expenses	7,600	0.30
Total expenses	$19,400	$21.50

Actual results for November:

Revenue	$118,040
Wages and salaries	$29,395
Expendables	$46,496
Facility expenses	$16,520
Administrative expenses	$8,285

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