Hard2 marksShort Answer
Cost accounting techniquesArea CProcess CostingEquivalent Units

ACCA · Question 14 · Cost accounting techniques

Section A

ChemCo operates a chemical refinery using process costing. During the month, 10,000 liters of material were input. Normal loss is 5% of input.

Actual output completed and transferred was 8,500 liters. Closing Work in Progress (WIP) was 1,000 liters, which were 100% complete for materials and 60% complete for conversion costs.

Calculate the equivalent units for conversion costs for the period.

(Enter your answer as a whole number)

How to approach this question

1. Check for abnormal loss: Input (10,000) - Normal Loss (500) = Expected Output (9,500). Actual Output (8,500) + WIP (1,000) = 9,500. There is no abnormal loss/gain. 2. Calculate EU for conversion: Completed units (8,500 * 100%) + WIP units (1,000 * 60%).

Full Answer

Input = 10,000 liters. Normal loss = 5% of 10,000 = 500 liters. Expected good production = 9,500 liters. Actual completed = 8,500. Closing WIP = 1,000. Total accounted for = 9,500. Therefore, no abnormal loss or gain. Equivalent units for conversion costs: Completed units: 8,500 × 100% = 8,500 Closing WIP: 1,000 × 60% = 600 Total equivalent units for conversion = 8,500 + 600 = 9,100.

Common mistakes

Including normal loss in the equivalent units calculation, or using 100% for the WIP conversion costs.

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