A number needs a date and a source.

Research can involve figures captured at different times and for different reporting periods. Keep that context visible when reviewing a company.

Record what you are comparing

Note the source and date of the information in your review. If two figures seem inconsistent, check their definitions and periods before interpreting them.

Keep uncertainty in the record

Mark an item for follow-up when the context is unclear. A missing value and a confirmed zero are different states.

Revisit the source

Use a shortlist to organize investigation, then review the underlying company information independently before making a decision.