Percentage Calculator
Calculate percentage of a number, percentage increase or decrease, or what percent one value is of another with our simple tool.
What is a Percentage?
A percentage is a way of expressing a number as a fraction of 100. It is denoted using the percent sign %. This concept is widely used in finance, statistics, and everyday calculations.
Percentage Formula
The general formula to find the percentage of a number is:
Percentage Value = (Part / Whole) × 100
For example, to find what percentage 20 is of 50:
(20 / 50) × 100 = 40%
How to Calculate Percentage Increase or Decrease
- Increase: ((New - Old) / Old) × 100
- Decrease: ((Old - New) / Old) × 100
Use Cases of the Percentage Calculator
This calculator is useful for:
- Finding discounts on shopping (try our discount calculator)
- Calculating tax (see our VAT calculator)
- Financial growth analysis (like our profit margin calculator)
- Loan comparisons (loan calculator)
Examples
Example 1: What is 15% of 200?
Calculation: (15 / 100) × 200 = 30.
Example 2: Price increased from 50 to 65. Percentage increase = ((65 - 50)/50) × 100 = 30%.
Advantages of Using This Tool
- Instant and accurate results
- Handles percentage increases, decreases, and direct calculations
- Simple UI - just enter values and click calculate
Limitations
This tool doesn’t handle compound interest scenarios. For that, consider our compound interest calculator.
Learn More
For deeper understanding, check out these resources:
Frequently Asked Questions
How do I calculate a percentage of a number?
Use the formula (Part/Whole) × 100. Or simply enter your values in this calculator to get instant results.
What is the formula to find percentage increase?
It is ((New Value - Old Value) / Old Value) × 100.
Can I use this calculator for percentage decrease?
Yes, enter your old and new values to compute a decrease by applying ((Old - New) / Old) × 100.
What are common uses of percentage calculations?
Discounts, tax calculations, profit margins, interest growth, comparing values.
How does this percentage calculator work?
It takes your inputs, applies the percentage formula, and instantly shows results, all in your browser.
References
