Percentage Calculator

Calculate percentages with multiple methods including visual charts and step-by-step solutions. Supports percentage of a number, what percentage, percentage change, reverse percentage, and percentage difference calculations. All processing is done in your browser for privacy.

Welcome to the Advanced Percentage Calculator! Select a calculation type to get started.

Visual Background

%

Calculate what a specific percentage of a number equals. Example: 20% of 150 = 30

About Percentages

Percentages are a way to express a number as a fraction of 100. They're used everywhere from finance to statistics.

This calculator handles all common percentage calculations with visual aids and step-by-step explanations.

Privacy & Security

All calculations are performed in your browser. No data is sent to external servers.

Your inputs and results remain completely private and are not stored anywhere.

Common Use Cases

Perfect for business analysis, academic calculations, shopping discounts, and financial planning.

From calculating tips to analyzing growth rates, this tool covers all your percentage needs.

How It Works

1

Select Calculation Type

Choose from 5 calculation types: percentage of a number, what percentage, percentage change, reverse percentage, or percentage difference.

2

Enter Your Values

Input the numbers you want to calculate with. The tool provides real-time validation and helpful examples for each calculation type.

3

View Results & Analysis

Get instant results with visual charts, step-by-step breakdowns, and practical examples to understand your calculations.

Frequently Asked Questions

What types of percentage calculations can I perform?

Our calculator supports 5 main types: finding a percentage of a number (e.g., 20% of 150), determining what percentage one number is of another, calculating percentage increase/decrease, reverse percentage calculations to find original values, and percentage difference between two values.

How do I calculate percentage change?

To calculate percentage change, enter your original value and new value. The calculator will show you the percentage increase or decrease, along with the formula: ((New Value - Original Value) / Original Value) × 100.

What is reverse percentage calculation?

Reverse percentage helps you find the original value when you know the percentage and the result. For example, if 120 is 80% of a number, the calculator will find that the original number is 150.

Is my data kept private?

Yes, absolutely. All calculations are performed entirely in your browser. No data is sent to our servers, ensuring complete privacy of your calculations.

Can I use this for business calculations?

Yes, this calculator is perfect for business use including calculating discounts, markups, profit margins, growth rates, commission calculations, and tax calculations.

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