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Variable Overhead Variances Morgan Tax Company considers 6,000 direct labor hours or 300 tax returns its normal monthly capacity. Its standard variable overhead rate is $5 per direct labor hour. During the current month, $25,400 of variable overhead cost was incurred in working 5,600 direct labor hours to prepare 270 tax returns. Determine the following variances, and indicate whether each is favorable or unfavorable: Determine the following variances: Do not use negative signs with any of your answers. Next to each variance answer, select either "F" for Favorable or "U" for Unfavorable. Variable Overhead Variances Actual cost: $ Split cost: $ Standard cost: $ a. Variable overhead spending $ b. Variable overhead efficiency $