What is the standard for vehicle depreciation fees?

[DeEmmett]

Vehicle depreciation calculation methods are generally divided into two categories: one is the average calculation method (straight-line method and units of production method), and the other is the accelerated depreciation method (double declining balance method and sum-of-the-years'-digits method). 1. Straight-line method calculation formula: Annual depreciation amount = original value / estimated useful life. 2. Units of production method calculation formula: Calculate depreciation based on mileage driven, depreciation amount = original value (mileage already driven / estimated total mileage). 3. Double declining balance method calculation formula: Depreciation percentage = 2 / estimated useful life, annual depreciation amount = value at the beginning of the year (depreciation percentage), with the remaining value evenly distributed over the last two years of the estimated useful life. 4. Sum-of-the-years'-digits method formula: Depreciation amount = original value (remaining useful life / sum of the years' digits).