Marilyne Clinic uses client-visits as its measure of activity. During August, the clinic budgeted for 4,050 client-visits, but its actual level of activity was 4,330 client-visits. Marilyne clinic has provided the following data concerning the formulas used in its budgeting and its actual results for August: Data used in budqetina: Actual results for August: The revenue variance for August would be closest to: $18,257U