Percentage Calculator
A versatile tool to solve all your percentage calculation needs.
Find a Percentage of a Number
A Number as a Percentage of Another
Percentage Increase / Decrease
How It Works
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To find a percentage of a number:
Use the first calculator. Enter the percentage you want to find and the total number. (e.g., 20% of 500) -
To find what % one number is of another:
Use the second calculator. (e.g., 50 is what % of 200) -
To find the percentage change:
Use the third calculator. Enter the starting value and the new value. (e.g., change from 80 to 100)
Everyday Math Made Easy: A Guide to Percentages
Percentages are a part of our daily lives, from shopping sales to understanding financial news. But calculating them can sometimes be confusing. Our free online Percentage Calculator is designed to remove the guesswork and give you instant, accurate answers.
When to Use Each Calculator
- Calculating Discounts: Use the "Find a Percentage of a Number" calculator to figure out how much you're saving. If a $200 jacket is 30% off, you can quickly find out you're saving $60.
- Tracking Your Goals: Use the "Number as a Percentage of Another" calculator to track progress. If you've saved $500 towards a $2,000 goal, you're 25% of the way there!
- Understanding Growth: Use the "Percentage Increase / Decrease" calculator to see how things change over time. If your website traffic went from 10,000 to 12,000 visitors, that's a 20% increase.
Our tool simplifies all these calculations, making it an essential utility for students, professionals, and anyone needing a quick math check.
Frequently Asked Questions
What exactly is a percentage?
A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%". For example, 25% is equivalent to the fraction 25/100, or the decimal 0.25. It's a way to express how large one quantity is relative to another quantity.
What are some common uses for this calculator?
You can use this tool for many everyday tasks:
• Calculating discounts at a store (e.g., 30% off a $150 item).
• Figuring out a tip at a restaurant (e.g., 18% of a $50 bill).
• Understanding statistics in the news (e.g., a 10% increase in prices).
• Calculating interest on a loan or investment.
How is percentage change calculated?
The formula for percentage change is: ((New Value - Initial Value) / |Initial Value|) × 100. A positive result indicates a percentage increase, while a negative result indicates a percentage decrease. Our calculator handles this logic for you and labels the result accordingly.