Chimilo Clinic uses client visits as its measure of activity. During June, the clinic budgeted 3,400 client-visits but its actual level of activity was 3,360 client visits. The clinic has provided the following data concerning the formulas for budgeting and its actual results for June

	Fixed element per month	variable element per client-visit
Revenue		33.7
Personal expenses	27,300	10.7
medical supplies	1200	5.5
occupancy expenses	9000	1.5
Adminsitrative expenses	4100	.3
Total expenses	41600	18

Actual results for January

Revenue 112,062

Personal expenses 64,602

medical supplies 19,900

occupancy expenses 13,640

administrative expenses 5,068

The medical supplies in the flexible budget for June would be closest to:

19,900

20,137

19,680

19,666