Fager Clinic uses client-visits as its measure of activity. During February, the clinic budgeted for 2,330 client-visits, but its actual level of activity was 2,380 client-visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual results for February: Data used in budgeting: Fixed Variable element element per per month client-visit $69.50 Revenue Personnel expenses Medical supplies Occupancy expenses Administrative expenses Total expenses $33,600 2,500 11,000 6,300 $53,400 $22.80 13.80 4.70 1.40 $42.70 Actual results for February: Revenue $169,210 Personnel expenses $ 83,045 Medical supplies $ 32,705 Occupancy expenses $ 19,400 Administrative expenses $ 7,615 The revenue variance for February would be closest to