Problem 4: Vallejos Clinic bases its budgets on the activity measure patient-visits. During February, the clinic planned for 2,800 patient-visits, but its actual level of activity was 3,000 patient-visits. The clinic has provided the following data concerning the formulas it uses in its budgeting: Revenue Personnel expenses Medical supplies Occupancy expenses Administrative Fixed element per month $0 $ 21,800 $ 800 $6,000 $2,800 Variable element per patient- visit $28.00 $8.30 $4.10 $1.00 $0.10 expenses Required: Prepare a report showing the clinic's activity variances for February. Indicate in each case whether the variance is favorable (F) or unfavorable (U).