What is the formula used in the units of production method to calculate depreciation?

What is the formula used in the units of production method to calculate depreciation?

• A. (Cost of asset / estimated service life)
• B. (Annual usage / cost of asset)
• C. (Total units produced / estimated service life)
• D. (Estimated service life / annual usage)

Answer: (C)

The key idea here is that the units of production method assigns depreciation based on how much of the asset’s actual usage occurs, not just how long it sits in service. You recover the asset’s value proportional to the amount of production it supports. In this method, you start with the depreciable base, which is typically cost minus any salvage value. Then you figure out how much of the total estimated production capacity will be used in the period. The depreciation for that period is proportional to that usage: units produced in the period divided by the total estimated units of production. This fraction represents the portion of the asset’s life that was consumed, and applying it to the depreciable base gives the depreciation expense for the period. So, depreciation tracks actual wear-and-tear through usage, rather than just the passage of time. The other approaches either allocate cost evenly over time (straight-line) or mix up usage with cost in a way that doesn’t reflect consumption of the asset’s productive capacity.

The key idea here is that the units of production method assigns depreciation based on how much of the asset’s actual usage occurs, not just how long it sits in service. You recover the asset’s value proportional to the amount of production it supports.

In this method, you start with the depreciable base, which is typically cost minus any salvage value. Then you figure out how much of the total estimated production capacity will be used in the period. The depreciation for that period is proportional to that usage: units produced in the period divided by the total estimated units of production. This fraction represents the portion of the asset’s life that was consumed, and applying it to the depreciable base gives the depreciation expense for the period.

So, depreciation tracks actual wear-and-tear through usage, rather than just the passage of time. The other approaches either allocate cost evenly over time (straight-line) or mix up usage with cost in a way that doesn’t reflect consumption of the asset’s productive capacity.