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Use this page if you spot a calculation issue, a broken link, a confusing explanation, or a page that should be corrected or improved.

What kind of messages are most helpful?

Formula or output concerns on a calculator page.
Broken links or layout problems on desktop or mobile.
Places where a guide is easy to misunderstand or leaves out an important practical factor.
Suggestions for new pages that fit the site's existing focus areas.

How to report a calculator issue

If the problem is calculation-related, include the page URL and the inputs you used. That makes it much easier to reproduce the result and review whether the issue is in the formula, the explanation, or the scenario assumptions.

What to include in a correction request

Helpful detail	Why it matters
Page URL	Shows exactly which page needs review.
Short description of the issue	Helps distinguish a formula bug from a wording or layout problem.
Your calculator inputs	Needed when the issue involves an unexpected result.
Screenshot or device note	Helpful when the problem appears only on a specific screen size or browser.