Nylle Ltd uses a job-costing system at its Melbourne furniture plant. The plant has a Machining Department and an Assembly Department. Its job-costing system has two direct cost categories (direct materials and direct manufacturing labour) and two manufacturing overhead cost pools (the Machining Department overhead, allocated to jobs based on actual machine-hours, and the Assembly Department overhead, allocated to jobs based on actual direct manufacturing labour costs). The 2023 budget for the plant is:

BUDGET

Machining Department

Assembly Department Annual Manufacturing overhead $2,500,000.00 $ 3,250,000.00 Direct manufacturing labour costs $2,050,000.00 $ 2,750,000.00 Direct manufacturing labour-hours 175,000.00 150,000.00 Machine-hours 100,000.00 125,000.00 Required: 1 Calculate the budgeted manufacturing overhead rate for each department. [2 marks] 2 During February, the job-cost record for Job 549 contained the following: ACTUAL COSTS Job 549 Machining Department

Assembly Department Direct materials used $ 55,000.00 $ 60,000.00 Direct manufacturing labour costs $ 50,500.00 $ 65,000.00 Direct manufacturing labour-hours 1,500.00 14,000.00 Machine-hours 1,200.00 1,350.00

Calculate- a) the total manufacturing overhead costs allocated to Job 549

b) the total of all costs from each department relating to Job 549 c) the total costs for job 549. [2 marks] 3 At the end of 2023, calculate the over- or under-allocated manufacturing overhead for each department and explain possible causes for the over- or underallocations. 4 If the actual costs for 2023 were as listed below, a) calculate the Actual Manufacturing Overhead rate for each department. b) use the actual rates to re-allocate for all costs related to Job 549.

ACTUAL 2023 COSTS

Machining Department

Assembly Department Annual Manufacturing overhead $2,850,000.00 $ 3,400,000.00 Direct manufacturing labour costs $2,100,000.00 $ 2,800,000.00 Direct manufacturing labour-hours 185,000.00 170,000.00 Machine-hours 105,000.00 125,000.00 5 With reference to Q4., explain why a normal costing system might be used for this company rather than an actual costing system.