Tool station
Free online tool
Percentage Calculator
Calculate percentages, discounts, increases, decreases, and percentage change without opening a spreadsheet.
Browser-only utility
Calculate percentages, discounts, and changes
Quick percentage math for prices, discounts, increases, decreases, school work, invoices, and everyday decisions.
Find the part value when you know the percentage and the total.
Current mode
Percent of total
Formula
X ÷ 100 × Y
Output
Copyable result
Everyday percentage math
Work out percentages for prices, discounts, tax estimates, grades, invoices, and quick planning notes.
Increase, decrease, and change
Switch between percentage of a value, percent comparisons, percentage change, and simple discount calculations.
Private by default
Your numbers stay in your browser. Bizzon does not upload, save, or process your calculations on a server.
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Tool guide
How to use the Percentage Calculator
Use this free online percentage calculator for discounts, increases, decreases, percentage-of calculations, and percentage change.
Quick steps
- 1. Choose the percentage calculation you need.
- 2. Enter the value and percentage numbers.
- 3. Use the result for pricing, planning, invoices, discounts, or comparisons.
Common use cases
- • Calculate discounts, sale prices, markups, increases, decreases, and percentage change.
- • Work out percentages for invoices, grades, budgets, tax estimates, and planning notes.
- • Avoid spreadsheet setup for small everyday percentage questions.
FAQ
Percentage Calculator questions
Can it calculate percentage change?
Yes. It supports common percentage calculations including increase, decrease, and percentage change.
Can I use it for discounts?
Yes. It is useful for sale prices, discount checks, and quick pricing estimates.
Are my numbers stored?
No. Calculations happen locally in your browser.
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