Percentage Calculator

Free online percentage calculator for quick and accurate calculations. Calculate increases, decreases, and differences quickly and easily.

What is
%
Answer:...
The value
Answer:...
The value
%
Of:...
Increasing the value
%
We obtain:...
Decreasing the value
%
We obtain:...
The difference between
Is:...
Cost price
%
Sale price:...

About this tool

Find percentages, increases, decreases, and differences between values quickly and easily. Perform percentage calculations with speed and precision using our free tool. Calculations are processed in real-time as you enter values, with results displayed automatically on the screen.

Features

Calculate what percentage one number is of another
Percentage increase and decrease with amount saved
Find original value from a known percentage
Percentage difference between two values
Profit margin calculator (cost + margin → sale price)
Real-time results as you type

How to use

1

Choose Calculation

Select the calculation mode that fits your needs from the 7 available options.

2

Enter Values

Input your numbers into the corresponding fields. No need to click calculate.

3

Get Results

The result is calculated instantly and displayed on the screen as you type.

Use Cases

  • Calculating restaurant tips easily.
  • Finding out how much you save on sales and promotions.
  • Calculating product selling prices with profit margins.
  • Analyzing business growth rates and performance variations.

Questions & Answers

What is the difference between percentage decrease and percentage difference?

Percentage decrease calculates a discount on a starting value (e.g., 20% off $100). Percentage difference compares two independent numbers to show the relative change between them.

How is the profit margin calculated?

It uses your cost price and desired margin to find the final sale price, ensuring the specified percentage of the sale price is your actual profit.

Can I use decimal numbers in my calculations?

Yes! Our calculator fully supports decimal values for both base numbers and percentages, giving you precise results for complex calculations.

See also