Explanation
Wasting Assets are the assets that have a limited life and thus decreases in value (depreciates) over time.
The term depletion is used in the context of extraction of natural resources like mines, quarries, etc. that reduce the availability of the quantity of the material or asset.
Hence Depletion method of depreciation is normally applied in case of wasting assets.
If a mine has 2 lakh tons of coal and the value of mine is Rs. 5 lakhs, each ton of coal will cost Rs. 2½. The quantity of coal taken out of the mine in a period will be multiplied by the rate per ton, i.e., Rs. 2½ and the resultant figure will be the amount of depreciation.
Straight line method of depreciation charges uniform or equal amount of depreciation every year on the fixed assets. Under this method, the original cost less residual value of the asset is distributed over the estimated useful life of the asset.
Thus, at the end of the useful life of the asset , the value of the asset becomes Nil in the books of accounts.
AS 8 - Accounting for Research & DevelopmentAmortization: the action or process of gradually writing off the initial cost of an asset.
Provisions are present obligations or liabilities but with uncertain amounts. The amounts can only be measured with a substantial estimation. Contingent liabilities are possible obligations.
This accounting convention is generally expressed as to “anticipate all the future losses "
This convention generally applies to the valuation of current assets as they are basis for preparing financial statements to facilitate comparison of financial statements on period to period basis.
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