Discounts and price changes
Calculate a percentage of a number when checking sale prices, markdowns, commissions, fees or simple adjustments.
Calculator tool
Free Percentage Calculator
Calculate percentages, percentage change and one number as a percentage of another.
30
15% of 200
Examples
Use it for pricing, growth, discounts and comparisons.
Calculate 20% of a budget, a discount on a price, revenue change between two periods, or one figure as a share of another.
FAQ
Common questions
Can this calculate percentage increase?
Yes. Select percentage change, then enter the original value and the new value.
Does it support decimals?
Yes. You can use whole numbers or decimals in both fields.
Related tools
Practical use
Calculate percentages for business, pricing and everyday numbers.
The percentage calculator is built for quick working numbers: discounts, increases, comparisons, growth rates, proportions and percentage change. It keeps common percentage tasks in one small browser utility.
Example workflow: enter last month and this month to get percentage change, then use the result in a report, LinkedIn post, spreadsheet note or business dashboard.
Privacy note: these Prima Ordia tools are designed for fast browser-based use. Avoid pasting highly confidential material into any online workflow unless it matches your organisation's policies.
Workflows
Common ways to use it
Growth and decline
Use percentage change to compare old and new values, such as traffic, revenue, costs, conversion rates or task completion numbers.
Proportions
Work out one number as a percentage of another for reports, quick analysis and planning conversations.
Everyday checks
Use it for tips, budgets, savings goals, tax estimates and other moments where a quick percentage answer is enough.
Related tools
Why use it
Fast, free and browser-based.
Calculate percentages, percentage change and one number as a percentage of another. No account required, and the page is designed for quick repeat use.
FAQ
Common questions
What can this percentage calculator calculate?
It calculates a percentage of a number, percentage change and one number as a percentage of another.
Can I use it for business calculations?
Yes. It is useful for discounts, growth rates, comparisons, margins and quick working numbers.
Is it free?
Yes. It is free and runs in the browser.