Each periods depreciation amount is calculated using the formula: annual depreciation rate/ number of periods in the year. For example, in a 12 period year, if an assets expected life is 60 months, the annual depreciation rate for the asset is: 12/60 = 20%, and the depreciation rate per period is 20% /12 = 0.0167%.

## What is rate of depreciation?

The depreciation rate is the percentage rate at which asset is depreciated across the estimated productive life of the asset. It may also be defined as the percentage of a long term investment done in an asset by a company which company claims as tax-deductible expense across the useful life of the asset.

Straight Line Depreciation Method = (Cost of an Asset – Residual Value)/Useful life of an Asset. Unit of Product Method =(Cost of an Asset – Salvage Value)/ Useful life in the form of Units Produced.

Each periods depreciation amount is calculated using the formula: annual depreciation rate/ number of periods in the year. For example, in a 12 period year, if an assets expected life is 60 months, the annual depreciation rate for the asset is: 12/60 = 20%, and the depreciation rate per period is 20% /12 = 0.0167%.

Each periods depreciation amount is calculated using the formula: annual depreciation rate/ number of periods in the year. For example, in a 12 period year, if an assets expected life is 60 months, the annual depreciation rate for the asset is: 12/60 = 20%, and the depreciation rate per period is 20% /12 = 0.0167%.

The straight-line formula used to calculate depreciation expense is: (assets historical cost – the assets estimated salvage value ) / the assets useful life.

## How do you calculate depreciation in accounting?

The straight-line formula used to calculate depreciation expense is: (assets historical cost – the assets estimated salvage value ) / the assets useful life.