Speyer Medical Clinic measures its activity in terms of patient-visits. Last month, the budgeted level of activity was 1,170 patient-visits and the actual level of activity was 1,160 patient-visits. The cost formula for administrative expenses is $4.10 per patient-visit plus $22,500 per month. The actual administrative expense was $22,600. In the clinic's flexible budget performance report for last month, the spending variance for administrative expenses was: Multiple Choice $4,656 F $1,870 F O O $41 F O $4.697 F