Value of an item depends on numerous factors. Any property fixed or movable have different values depending on the marketplace(s) , time of sale and level of intended use. Therefore one can have many ranges in values for an item. Value in the market for highest and best use can be quite different from a forced liquidation fire sale.
Due to these different levels in markets, differing needs and different uses the value do vary.
Reports can be for insurance for a public consumer, auction of an estate, divorce proceeding, resell to public or trade, historical pieces with provenance, tax values and value of goods in seizure from government etc.