Depreciation is the decline in the future economic benefits of a depreciable non-current asset through wear and tear and obsolescence. It is an allocation process. It can be calculated by two main methods, each reflecting in a distinct prospect in the way the asset is used. Depreciation is to be treated as an estimated expense that does not set aside cash for the replacement of a non-current asset. In determining the cost of acquisition of the lathes, any capital expenditure made must be added to the purchase price of the lathes. This amount will be considered as the historical cost and will be used in calculating the deprecia