Discount CalculatorCalculate the sale price after a discount, an optional second (stacked) discount and sales tax or VAT, plus how much you save in total.
Percentage Calculator
Four everyday percentage questions, each with its own small calculator. Results update as you type and show the formula used, so you can check the working.
What is X% of Y?
X is what percent of Y?
Percentage change from A to B
Add or subtract a percentage
Runs entirely in your browser. Your input and files are not uploaded to any server.
How to use
- Pick the question that matches what you need.
- Type the two numbers.
- Read the result and the formula underneath.
Examples
Tip
15% of 240 = 36.
Price change
From 80 to 92 is a 15% increase.
Privacy
Runs entirely in your browser. Your input and files are not uploaded to any server. See the privacy policy for what is stored in your browser (favorites and history only). Privacy policy
Check it yourself: open your browser’s developer tools, select the Network tab and use the tool. Your file never appears in an upload request. Once this page is saved for offline use, you can also disconnect from the internet and keep working. Ads and anonymous visit statistics, when enabled, make their own requests, but they never receive your files or text.
Frequently asked questions
What is the difference between percent change and percentage points?
If a rate goes from 10% to 12%, it rose by 2 percentage points, which is a 20% increase. This calculator shows percent change.
Why is the change from 0 undefined?
A change from zero cannot be expressed as a percentage because it would mean dividing by zero.
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