Free Percent Increase Calculator

Enter the original and new (higher) values to get the increase amount and the percentage growth — plus the new value expressed as a percent of the original.

Private by design. This tool runs 100% in your browser — your inputs are never uploaded to any server.

How to Use the Percent Increase Calculator

  1. Enter the original value.
  2. Enter the new (higher) value.
  3. Click Calculate Increase for the growth amount and %.

Features

Computes (new − original) / original with zero-guards, showing the absolute gain and the growth rate side by side for full context.

Benefits & Use Cases

Businesses report revenue growth, investors track gains, employees quantify raises, and creators measure audience growth.

Tips

Small bases exaggerate: growing from 2 to 4 sales is +100% but only +2 sales — always pair the percent with the absolute number the tool shows.

Frequently Asked Questions

How is percent increase calculated?

(New − original) ÷ original × 100.

What is the difference from percentage change?

Percent increase assumes growth; percentage change handles both directions with a sign.

Why can’t the original be zero?

Division by zero is undefined — growth from nothing can’t be expressed as a percent of zero.

Is a 100% increase the same as doubling?

Exactly — 100% increase means twice the original; 200% means triple.

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