Start with the build
Copy your Probably Stolen build before comparing observations. A Demo manual is a useful checklist, but it is not proof of a 1.0 valuation rule.
Inspect one feature at a time
Use the item-specific checklist to record markings, visible damage and attachments. A checked box means you inspected a feature. It does not certify the item.
Keep three price fields
Record the appraisal-service value, your purchase price and the ordinary sale price separately. Do not infer one from another or replace an unknown value with zero.
A formula needs repeatable evidence
Before adding a Probably Stolen valuation rule, test its base value, adjustments, combinations, rounding and exceptions against a named build. Until then, retain the observations and leave the calculated value unknown.
Editorial tool guide · Updated October 28, 2026. Arithmetic examples are not game observations.