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MNO uses activity based costing where overhead from three different cost centers

ID: 2607479 • Letter: M

Question

MNO uses activity based costing where overhead from three different cost centers are allocated to products based upon the following:

Activity                 Driver - Overhead Costs - Product A - Product B

Setup                    Production Runs - $100,000 - 80 productions runs - 20 production runs

Inspection           Inspection Hours - $300,000 - 200 hours - 100 hours

Machining           Machine Hours - $800,000 - 5,000 hours - 3,000 hours

Raw materials are directly followed to each product and the amount of raw materials used for Product A was $300,000 and for Product B was $200,000. Direct labor is directly followed to each product and the amount of direct labor used for product A was $100,000 and for product B was $50,000. There were 12,000 units of product A manufactured and 10,000 units of product B manufactured.

Calculate the total unit cost of making product A and product B using ABC. Show computations.

If MNO uses one plant wide rate to allocate all the overhead based upon direct labor direct labor hours and product A used 20,000 direct labor hours and product B used 10,000 direct labor hours calculate the total unit cost of product A and product B.

Explanation / Answer

a) Calculation of Unit Cost under ABC Costing System:

Working Note 1: Calculation of cost per cost driver

Calculation of Unit Cost of each Product

b) Calculation of Unit Cost under One Plant Wide Rate:

Total Overheads= $1200000

Total Labour Hours= 30000

Overhead per Labour Hour= $40

Particulars Cost Driver Total Cost No of Cost Driver Cost per Cost Driver Cost allocated to Product A Cost Allocated to Product B Setup Cost Production Run 100000 100 1000 80000 20000 Inspection Cost Inspection Hours 300000 300 1000 200000 100000 Machining Cost Machining Hours 800000 8000 100 500000 300000 Total 780000 420000