The following data for March have been provided by Fickling Corporation, a producer of precision drills for oil exploration: Budgeted production 5,700 drills Standard machine-hours per drill Standard indirect labor Standard power 1.8 machine-hours $1.30 per machine-hour Actual production $1.20 per machine-hour 5,800 drills Actual machine-hours 10,580 machine-hours Actual indirect labor $13,024 Actual power $13,107 Required: Compute the variable overhead rate variances for indirect labor and for power for March. Indicate whether each of the variances is favorable (F) or unfavorable (U). Show your work