These optional fields are used to calculate duration of ownership as well as any depreciation or appreciation costs. For length of ownership, you must provide a Purchase Date, if Sold Date was not provided, LubeLogger will calculate the amount of days between the current day and the Purchase Date as length of ownership. If both Purchase and Sold Costs are provided, LubeLogger will calculate any depreciation / appreciation costs as well as the cost per mile and cost per day. These data will show up in the Vehicle Maintenance History Report under its own section.
