please help

Bartosiewicz Clinic uses client-visits as its measure of activity. During January, the clinic budgeted for 3,500 client-visits, but its actual level of activity was 3,480 cllent-visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual fesults for January: Data used in budgeting: Actual results for January: The overall revenue and spending variance (le., the variance for net operating income in the revenue and spending variance column on the flexible budget performance report) for January would be closest to