Grant Manufacturing uses standard costing. It allocates manufacturing overhead (both variable and fixed) to products on the basis of standard direct manufacturing labor-hours (DMLH). Grant develops its manufacturing overhead rate from the current annual budget. The manufacturing overhead budget for 2020 is based on budgeted output of 576,000 units, requiring 2,304,000 DMLH. The company is able to schedule production uniformly throughout the year.

A total of 46,000 output units requiring 193,200 DMLH was produced during August 2020. Manufacturing overhead (MOH) costs incurred for August amounted to $329,100. The actual costs, compared with the annual budget and 1/12 of the annual budget, are as follows:

Required

Calculate the following amounts for Grant Manufacturing for August 2020:
1. Total manufacturing overhead costs allocated
2. Variable manufacturing overhead spending variance
3. Fixed manufacturing overhead spending variance
4. Variable manufacturing overhead efficiency variance
5. Production-volume variance
Be sure to identify each variance as favorable (F) or unfavorable (U).

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Variable MOH Indirect manufacturing labor Supplies Fixed MOH Supervision Utilities Depreciation Annual Manufacturing Overhead Budget 2020 Per Output Per DMLH Unit Input Unit Total Total Amount $ 921,600 576,000 691,200 345,600 806,400 $3,340,800 $1.60 1.00 1.20 0.60 1.40 $5.80 $0.40 0.25 0.30 0.15 0.35 $1.45 Monthly MOH Budget August 2020 $ 76,800 48,000 57,600 28,800 67,200 $278,400 Actual MOH Costs for August 2020 $ 76,800 89,400 47,100 39,900 75,900 $329,100