Original value = purchase price+freight+installation and debugging fee+taxes other than value-added tax (such as import tax)

Book value refers to the original value minus depreciation and impairment provision.

Book value = original value-accumulated depreciation-fixed assets impairment reserve

The original book value is relative to fair value. In China, original book value = original value.

The recorded value is related to the subsequent processing. Accounting standards stipulate that if the follow-up expenses such as major repairs exceed 50% of the original value or the service life is extended for more than 2 years, they can be capitalized, that is, the original value can be increased. At this time, the book value becomes an increased value, and the original value refers to the original value.

The net book value is also relative to the fair value, which refers to the original book value at that time minus depreciation and asset impairment reserve. Generally speaking, net book value = book value.