Free Percentage Calculator – Calculate Percentages, Increases & Decreases Instantly
The Percentage Calculator Tool makes it easy to calculate percent values, percentage increase or decrease, and find what percent one number is of another — all in seconds. Whether you’re calculating discounts, grades, tax rates, interest, or growth percentages, this online calculator provides instant, accurate, and easy-to-understand results. Perfect for students, professionals, business owners, and anyone who deals with percentages daily.
Percentage Calculator FAQs
Learn how to calculate percentages, increases, and decreases with simple examples.
Q1:
A Percentage Calculator is a tool that helps you quickly calculate percent values, increases, decreases, or proportions between two numbers.
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Use this formula:
Percentage = (Part ÷ Whole) × 100
Percentage Change = ((New Value – Old Value) ÷ Old Value) × 100
If the result is positive, it’s an increase; if negative, it’s a decrease.
You can use it for calculating discounts, grades, tax, profit margins, growth rates, and more.
Yes! It’s 100% free, no login or registration required.
Yes, our Percentage Calculator works perfectly on all devices — desktop, tablet, and mobile.