Guareno Clinic uses client-visits as its measure of activity. During December, the clinic budgeted for 2,500 client-visits, but its actual level of activity was 2,450 client-visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual results for December: Data used in budgeting: Fixed element per month Variable element per client-visit Revenue $ 0 $ 45.20 Personnel expenses $ 34,300 $ 13.30 Medical supplies 1,600 5.40 Occupancy expenses 10,000 1.80 Administrative expenses 3,800 0.20 Total expenses $ 49,700 $ 20.70 Actual results for December: Revenue $ 108,650 Personnel expenses $ 65,755 Medical supplies $ 14,380 Occupancy expenses $ 14,000 Administrative expenses $ 4,210 The spending variance for medical supplies in December would be closest to: