%Percentage Calculator
Calculate percentages, increases and decreases.
🆓 Free🔒 Secure⚡ Instant📱 Mobile-friendly🚫 No signup
Calculate percentage online for free. Find percentage of a number, percentage change, and more.
What is 15% of 200?
How to Use Percentage Calculator — Step by Step
- 1Choose the calculation type — What is X% of Y? Or X is what % of Y? Or % change from X to Y?
- 2Enter the values into the relevant fields
- 3Click 'Calculate' — the result is shown instantly
- 4Switch calculation types to solve different percentage problems
Why Use ToolNest for Percentage Calculator?
- 🧮Three calculation modes: X% of Y, X is what % of Y, % change from X to Y
- ⚡Results update instantly as you type
- 📋Copy result with one click
- 🆓Free — no account needed
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Frequently Asked Questions
What types of percentage calculations are supported?
Three types: (1) What is X% of Y? (2) X is what percentage of Y? (3) Percentage change from X to Y.
How is percentage change calculated?
Percentage change = ((New Value - Old Value) / Old Value) × 100. A positive result means an increase, negative means a decrease.
Is there a limit on the numbers I can enter?
No. The calculator handles any positive or negative numbers.
Is it free?
Yes — completely free.