Systematic allocation of the cost of an asset less its salvage value over its useful life. This method is the simplest, and best known, of the various depreciation. It is a method that a constant depreciation charge is made. The annual depreciation remains the same for the useful life of the asset. Cost - Depreciation changes made Book value is the remaining undepreciated investment.
Cost is the first cost of asset.
May. It will be sold in November 10 years from now.