Percentage Calculator
// Calculate percentages, percent change, and ratios
#About Percentage Calculator
Free online percentage calculator. Calculate X% of Y, find what percent X is of Y, and compute percentage change between two values. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
How do I calculate what percent X is of Y? ▾
Divide X by Y and multiply by 100. For example, 25 is 50% of 50 because (25 / 50) × 100 = 50%.
How is percentage change calculated? ▾
Percentage change = ((New − Old) / |Old|) × 100. A positive result means an increase, a negative result means a decrease.
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/percentage-calculator" width="100%" height="500" frameborder="0" title="Percentage Calculator"></iframe>