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Found a number that needs checking?

The fastest way to report an error or an outdated source is through the public repository issue tracker.

Include these details

Copy the page URL, describe the problem, and link to the current source if you have one. For a calculation, show the input or step that looks wrong. Leave out private financial, health, and account information.

How corrections are handled

We check the report against the source and revise the guide when the evidence supports a change. A material revision receives a new update date. The issue tracker is public, so do not use it for confidential information.