OH variances Nelson Co. manufactures a product that requires 3.5 machine hours per unit. The variable and fixed overhead rates were computed using expected capacity of 576,000 units (produced evenly throughout the year) and expected variable and fixed overhead costs, respectively, of $8,064,000 and $14,112,000. In October, Nelson manufactured 47,600 units using 167,200 machine hours. October variable overhead costs were $660,000; fixed overhead costs were $1,178,000. a. What are the standard variable and fixed overhead rates? Standard VOH rate $ 4 per MH Standard FOH rate 7 per MH b. Compute the variable overhead variances. Note: Do not use a negative sign with your answer. VOH spending variance $ 8,800 Favorable VOH efficiency variance $ Unfavorable Total VOH variance $ Favorable C. Compute the fixed overhead variances. Note: Do not use a negative sign with your answer. FOH spending variance $ FOH volume variance $ Unfavorable Unfavorable Unfavorable . Total FOH variance $