Federick Clinic uses client-visits as its measure of activity. During October, the clinic budgeted for 3,000 client-visits, but its actual level of activity was 3,040 client-visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual results for October: Data used in budgeting: Fixed element per month Variable element per client-visit Revenue $ 51.20 Personnel expenses $ 36,600 $ 18.10 Medical supplies 1,000 6.80 Occupancy expenses 12,100 1.70 Administrative expenses 4,800 0.20 Total expenses $ 54,500 $ 26.80 Actual results for October: Revenue $ 158,578 Personnel expenses $ 87,314 Medical supplies $ 21,452 Occupancy expenses $ 18,048 Administrative expenses $ 5,248 The occupancy expenses in the flexible budget for October would be closest to: