Hagel Clinic uses client-visits as its measure of activity. During July, the clinic budgeted for 2,300 client-visits, but its actual level of activity was 2,320 client-visits. The clinic has provided the following data concerning the formulas used in its budgeting and its actual results for July: Data used in budgeting: Actual results for July: The revenue variance for July would be closest to: Multiple Choice $2,570F $1,678U $1,678F $2,570