To continue with the preceding example, Henderson Industrial decides to stop recording normal spoilage in its bills of material, and instead records the actual cost of spoilage in a manufacturing overhead cost pool. It calculates this cost by adding up the number of spoiled cartons and multiplying by the component cost of each one. In May, the calculation is:

1,500 spoiled cartons x $0.25/unit resin cost = $375

Henderson’s cost accountant includes this cost in the manufacturing overhead cost pool, which is comprised of the following costs in May:

Manufacturing Overhead Line Item

Amount

Manufacturing supervisor salaries

$140,000

Building rent

50,000

Utilities

15,000

Spoilage

375

Total

$205,375

During May, Henderson manufactured 10,000,000 cartons. The amount of the overhead cost pool allocated to each carton is:

$205,375 / 10,000,000 cartons = $0.021 per carton