Step 1: Calculate Cost of Raw Materials Consumed
Opening Inventory+Purchases−Closing Inventory
$15,000+$85,000−$12,000=$88,000
Step 2: Calculate Prime Cost
Raw Materials Consumed+Direct Labour
$88,000+$60,000=$148,000
Step 3: Add Factory Overheads
Factory Rent+Depreciation
$24,000+$10,000=$34,000
Step 4: Calculate Production Cost before WIP adjustment
Prime Cost+Factory Overheads
$148,000+$34,000=$182,000
Step 5: Adjust for Work in Progress (WIP)
Cost before WIP+Opening WIP−Closing WIP
$182,000+$8,000−$11,000=$179,000
Final Answer: The production cost of finished goods is $179,000.