Recall that Depreciation is a mechanism for “recovering” or “charging against income” the cost of Equipment, Real Estate, and Leasehold improvements over their useful life. There are two methods used depreciating. Straight-Line Depreciation is one of them.
A typical business question on a contractor’s test will ask you to calculate the depreciation per year, the depreciable base, or even the salvage value of an asset.
You can calculate any of those figures simply by knowing how straight-line depreciation works.
Notice that when plotted on a graph, straight-line depreciation looks like a straight line, hence the name.