Contact
The Aureus Percentage Calculator is a small, free tool maintained by its site owner. There is no support desk, and this page has no contact form — deliberately, because a form here would have nowhere real to send your message.
If you have a question, spot an error, or have feedback about the calculator, please reach out to the site owner through the website or channel where you found this tool, and mention "Percentage Calculator" so it reaches the right place.
One reassurance: because the calculator runs entirely in your browser and stores nothing, there is never any account or saved data that support would need to look up.