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Managerial

Process costing (weighted average)

Equivalent units, cost per unit, and the split between completed output and work in progress.

The mixing department at Calder Paints adds all pigment and base at the start of the process; conversion (labour and overhead) is added evenly. Weighted average pools opening work in progress with this month’s costs.

Physical units
Costs

Completed and transferred out

180,000.00

Closing work in progress

21,900.00

Cost per completed unit

10.0000

Equivalent units and cost per equivalent unit
LinePhysical unitsMaterials EUConversion EU
Completed and transferred out18,00018,00018,000
Closing WIP100% materials, 40% conversion3,0003,0001,200
Equivalent units21,00021,00019,200
Total cost (opening + added)115,500.0086,400.00
Cost per equivalent unit5.50004.5000
Units to account for
Opening WIP2,000
Started this month19,000
To account for21,000
Completed18,000
Closing WIP3,000
Accounted for21,000

Units started is the balancing figure.

Costs to account for
Opening WIP12,700.00
Added this month189,200.00
To account for201,900.00
Completed and transferred out180,000.00
Closing WIP21,900.00
Accounted for201,900.00

✓ Costs reconcile exactly. Closing WIP is rounded to the cent; completed cost is the balancing figure.

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