The Historic tab on the AM Asset Other Details screen contains the following details:

These are:
- Gross Cost: This field will contain the amount added to the Original Capital Cost field on the Main tab of the AM Asset Maintenance form when the Asset was created and will only change where the Asset has been revalued resulting in a Revaluation Enhancement transaction that increases the Asset's value. Revaluations are further detailed in the Revaluation section.
- Depreciation Percentage: This field will contain the amount in the Depreciation Percentage column for the Asset Book of the Asset as displayed in the Grid at the bottom of the Main tab of the AM Asset Maintenance form. It is in effect the percentage amount that the Asset has been or will be depreciated by. This amount can be changed by a Revaluation transaction, as detailed in the Revaluation section, or by a Relife transaction, as detailed in the Relife section. It an also be changed by the depreciation process when depreciating Assets in bulk, as detailed in the Asset Bulk Depreciation Process section, or when depreciation an individual Asset, as detailed in the Depreciation section.
- Depreciation Cost Per Unit: Where the Depreciation Method of the Asset, as displayed in the Depreciation Method column on the Grid at the bottom of the Main tab of the AM Asset Maintenance form, is Units of Use, this field will display the amount by which the Gross Cost amount will be depreciated. Where the Depreciation Method is not Units of Use, this field will be 0.00.
- Value for Depreciation: This field should include the same amount as in the Gross Cost amount, as detailed above, unless the Depreciation Method of the Asset, as displayed in the Depreciation Method column on the Grid at the bottom of the Main tab of the AM Asset Maintenance form, is one of the Declining Balance depreciation methods, in which case the amount will be reduced at the start of each financial year.
- Depreciation: The amount in this field will be the accumulated depreciation amount of the Asset, rounded to 2 decimal places.
- Unrounded Depreciation: The amount in this field will include the same amount as in the Depreciation field, detailed immediately above, but will include 6 decimal places to mitigate rounding issues.
- Impairment: Please ignore this field as Impairments are not currently being used.
- Carrying Value: This amount will be the amount in the Gross Cost field, less the amount in the Impairment field, less the amount in the Depreciation field - these fields are detailed as above.
- Impairment Date: This field would normally includes the date of the Revaluation that resulted in a Historic Impairment or Impairment Reversal. As Impairments are not being used this field can be ignored.
- Impairment Percentage: This field would normally include the Historic Depreciation Percentage at the time of an Impairment or Impairment Reversal. As Impairments are not being used this field can be ignored.
- Historic Impairment Cost Per Unit: This field would normally include the Historic Depreciation Cost Per Unit at the time of an Impairment or Impairment Reversal. As Impairments are not being used this field can be ignored.
- Number of Units at Impairment: This field would normally include the Number of Units of the Asset at the time of an Impairment or Impairment Reversal. As Impairments are not being used this field can be ignored.
- Depreciation at Impairment: This field would normally include the Historic Depreciation at the time of an Impairment or Impairment Reversal. As Impairments are not being used this field can be ignored.
- Enhancement: This field will contain the accumulated amount for any Enhancement transactions due to any revaluations of the Asset. As Enhancements are not being used this field can be ignored.