18-18 Paulis Kennel uses tenant-days as its measure of activity, an animal housed in the kennel for one day is counted as one tenant-day During February, the kennel budgeted for 4,500 tenant-days, but its actual level of activity was 4,480 tenant-days. The kennel has provided the following data conceming the formules used in its budgeting and its actual results for February Data used in budgeting Revenue i Wages and salaries Food and supplies Facility expenses Administrative expenses Total expenses Actual results for February Revenue Wages and salaries Food and supplies Facility expenses Administrative expenses Fixed element per Variable element month 50 $ 3,500 per tenant-day $31.00 $7.00 900 11.80 8,500 4.00 8,300 0.40 $ 23.201 $ 21,200 $108,280 $ 23,550 $36,795 $19,300 $9,150 The overall revenue and spending variance (e. the variance for net operating Income in the revenue and spending variance column on the flexible budget performance report) for February would be closest to