Gourley Clinic uses client-visits as its measure of activity. During August, the clinic budgeted for 3,450 client- visits, but its actual level of activity was 3,400 client-visits. The clinic has provided the following data concerning the formulas to be used in its budgeting Fixed Variable element per element per month client-visit $39.50 Revenue Personnel expenses Medical supplies Occupancy expenses Administrative expenses otal expenses $35,500 1,500 8,500 5,500 $10.70 7.50 1.50 0.6 The activity variance for administrative expenses in August would be closest to