Problem: The measure of activity in the standard costing system used at Rorick Plc Ltd. is machining hours. The company's flexible manufacturing overhead budget and then data regarding the most recent period's operations are given below: Flexible Budget: Budgeted Level of Activity: 5,800 machining hours Overhead costs at the Budgeted activity level: Variable Overhead Cost: $48,662 Fixed Overhead Cost: $10,440 Most Recent period's operations: Actual level of activity: 5,700 machining hours Standard level of activity for output: 5,860 machining hours Actual total variable overhead cost: $50,901 Actual total fixed overhead cost: $9,234
PART A: What is the variable overhead rate variance?
PART B: What is the variable overhead efficiency variance?
PART C: What is the fixed overhead budget variance?
PART D: What is the fixed overhead volume variance?