To calculate the prime cost, we need to identify the direct materials used and direct labor costs.
The formula for prime cost is:
Prime Cost=DirectMaterialsUsed+Direct Labor
Step 1: Calculate Direct Materials Used.
To find the direct materials used, we use the following formula:
Direct Materials Used=OpeningRawMaterialsInventory+PurchasesofRawMaterials+CarriageInwardsonRawMaterials−ReturnsonRawMaterials−Closing Raw Materials Inventory
From the provided information:
- Inventories on 1 October 2023: Raw materials = M15 000
- Purchases of raw materials = M25 000
- Carriage inwards: Raw materials = M1 800
- Returns on raw materials = M3 800
- Inventories on 30 September 2024: Raw materials = M12 000
Substitute the values into the formula:
Direct Materials Used=M15000+M25000+M1800−M3800−M12000
Direct Materials Used=M40000+M1800−M3800−M12000
Direct Materials Used=M41800−M3800−M12000
Direct Materials Used=M38000−M12000
Direct Materials Used=M26000
Step 2: Identify Direct Labor.
From the provided information, Manufacturing wages represent direct labor.
- Manufacturing wages = M9 200
Step 3: Calculate Prime Cost.
Now, add the direct materials used and direct labor to find the prime cost:
Prime Cost=DirectMaterialsUsed+Direct Labor
Prime Cost=M26000+M9200
Prime Cost=M35200
The prime cost is M35200.
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