Corrections
How to report a factual or calculation error, and how we review, correct and record changes.
When we find an error
We correct confirmed factual or calculation errors promptly, according to their importance. If a change could affect a reader’s decision, we leave a correction note in the page.
Request a correction
Contact us with the page address, the statement or calculation at issue, and evidence we can verify.
How we review a report
- Read the report and check the supplied sources.
- Revisit the original source and calculation steps.
- Fix a confirmed error and check what else it affects.
- Add the correction date and an explanation of the change where needed.
Small wording changes and typo fixes may be made without a separate correction notice.