Jiz Speyer Medical Clinic measures its activity in terms of patient.visits. Last month, the budgeted level of activity was 1,150 patient-visits and the actual level of activity was 1140 patient-visits. The cost formula for administrative expenses is $3.90 per patient-visit plus $21.500 per month The actual administrative expense was $22,000. In the clinic's flexible budget performance report for last month, the spending variance for administrative expenses was: Multiple Choice O $3.946 F O $1570F O $39F