9 Exercise 4 (10 Points); Polloch Production Plant uses a standard cost system in its manufacturing plant for computer parts. The standard cost of RVH part, based on a denominator level of 3,600 output units per year, included 5 machine-hours of variable manufacturing overhead at $7 per hour and 5 machine-hours of fixed manufacturing overhead at $13 per hour. Actual output achieved was 4,100 units. Variable manufacturing overhead incurred was $220,000. Fixed manufacturing overhead incurred was $380,000. Actual incurred machine-hours were 32,000. Required: 1. Prepare an analysis of all VMOH and FMOH variances using the columnar approach. Elexible budget variable overhead amount 10 "1 12 13 14 15 16 17 18 19 20 21 22 23 44 Flexible budget Actual input @budgeted rate amount for variable MOH Actual input @budgeted rate VMOH amounts Actual Costs Incurred Actual input @budgeted rate Flexible Budget Allocated Overhead Allocated FMOH