Make a useful bug report.
A few clear details make a calculation issue much easier to reproduce.
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- Name the tool and copy the entered values.
- State the result you expected and how you calculated it.
- Include the actual result and any error message.
- Optionally include browser and device details.
Before reporting
Check the input definitions and FAQ. Export a project if that helps reproduce the issue, but remove private notes. Do not send passwords, payment information, or identity documents.