The following data for November have been provided by Hunn Corporation, a producer of precision drills for oil exploration: Budgeted production Standard machine-hours per drill Standard indirect labor Standard power Actual production Actual machine-hours Actual indirect labor Actual power $ $ 4,400 drills 9.7 machine-hours 9.50 per machine-hour 3.10 per machine-hour 4,600 drills 36,050 machine-hours $345,062 $110,460 Required: Compute the variable overhead rate variances for indirect labor and for power for November. Indicate whether each of the variances is favorable (F) or unfavorable (U). (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values.)