Contact Us | Calculate Percentage Increase

Found an error or have a suggestion? Contact our team directly to request a new calculator or report a UI bug.

What we want to hear about

Math errors. If our calculators yield an incorrect numerical answer or formula output, please let us know the exact inputs you used.
UI Bugs. If the site layout is broken on your device or a button isn't working as expected.
Feature requests. Need a specific mathematical or statistical percentage calculation we don't currently offer? Send us your suggestions!

We read every single email and usually respond within 24-48 academic hours.