❓ Frequently Asked Questions
What is a Percentage Calculator?
A Percentage Calculator is a free online tool that helps you calculate percentages in three different ways: finding what is a percentage of a number, what percent one number is of another, and percentage change between two numbers.
What are the three calculation modes?
This tool supports three modes:
- What is % of? — Calculate a percentage of a number (e.g., 20% of 100 = 20)
- is what % of? — Find what percentage one number is of another (e.g., 25 is 12.5% of 200)
- % Change — Calculate percentage increase/decrease between two values (e.g., 50 → 75 = +50%)
What is the formula for percentage calculations?
The formulas used are:
- % of a number: Result = (Percentage / 100) × Number
- is what % of: Result = (X / Y) × 100
- % Change: Result = ((New - Old) / |Old|) × 100
Is this Percentage Calculator free?
Yes! Kognitrick Percentage Calculator is completely free to use. No registration, no hidden charges, no credit card required.
Can I use this tool offline?
Yes! Once the page loads, this Percentage Calculator works completely offline. No internet connection is required to calculate percentages.
Who can benefit from using a Percentage Calculator?
This tool is useful for:
- 🛍️ Shoppers calculating discounts
- 📊 Business professionals analyzing data
- 🎓 Students and teachers
- 💰 Anyone working with percentages