The correct answer is \(\rm \frac{ Original \ Cost \ - \ Estimated \ Salvage Value}{Estimated \ useful \ life \ in \ years}\)Depreciation: The fall in the monetary value of an asset due to its constant use, wear, and tear, obsolescence is termed as Depreciation. It is considered a yearly non-cash expense of a company. Under the Straight-line method of depreciation, the depreciation on any asset is charged on the original cost of the assets, which was paid at the time of purchasing of the asset. The value of depreciation is fixed for all years. It is calculated by deducting the salvage value of the asset from the cost and then dividing it by the total estimated life of the asset. The formula for calculating depreciation charged using the Straight line method-\(\rm \frac{ Original \ Cost \ - \ Estimated \ Salvage Value}{Estimated \ useful \ life \ in \ years}\)?Additional InformationSalvage Value: The salvage value of an asset is the amount of money a company anticipates getting for selling or splitting out the asset at the end of its useful life.