Contact Us
Have questions, feedback, or suggestions? We would love to hear from you.
General inquiries
Bug Reports
Report calculation errors or issues
Feature Requests
Suggest new calculator modes
Common Questions
Is the calculator free?
Yes, PercentageCalc is completely free to use with no limitations or account required.
Is my data safe?
All calculations happen in your browser. No data is sent to our servers.
Can I use this for business?
Absolutely. Our margin calculator is designed specifically for business use cases.
Response time
We typically respond to emails within 24-48 business hours.