Clinic House 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: Data used in budgeting: Revenue Fixed element per month Variable element per client-visit $51.2 Personnel expenses $36,600 $18.10 Medical supplies 1000 6.80 Occupancy expenses 12100 1.70 Administrative expenses 4800 0.20 The personnel expenses in the planning budget for October would be closest to: $86,165 $87,314 $90,900 $91,264