PERCENTAGE CALCULATOR

WHAT THIS CALCULATOR IS FOR

Percentage Calculator works out percentage of a number, percentage change and reverse percentage.

Use it for discounts, price increases, savings, marks, bills, VAT-style checks and quick homework answers.

Page 1 keeps the working calculator visible, simple and safe on smaller screens.

For adding or removing a percent directly, use Page 613 next.

HOW TO USE

Choose % OF to find part of a number, such as 25% of 80.

Choose % CHANGE to compare an old value with a new value.

Choose REVERSE to find the original value before an increase or decrease.

Press CALC or Enter to save the result to history.

WHO USES IT

This tool helps students, teachers, parents, shoppers, office users and small business users.

Students can check percentage homework and exam-style percentage change questions.

Shoppers can compare discounts, final prices and savings.

Businesses can check markups, reductions, invoice changes and simple comparisons.

COMMON SEARCHES

Common searches include percentage calculator, online percentage calculator and free percentage calculator.

Other searches include percentage of a number calculator, percentage change calculator and reverse percentage calculator.

This page also supports discount calculator, percentage increase calculator and percentage decrease calculator searches.

DEVICE GUIDANCE

The calculator is arranged to fit inside the Teletext frame without page-level vertical scrolling.

On phones, the main tool remains the focus and extra help is moved to separate internal pages.

Tap the percent slider for quick values, or type exact numbers into the fields.

Internal PREVIOUS and NEXT controls loop safely through all help pages.

RELATED TOOLS

Use the parent hub and sibling pages for nearby everyday maths calculators.

Fast links: HOME 101 • INDEX 199 • PREVIOUS 611 • NEXT 613.

PERCENTAGE CALCULATOR PURPOSE

This page gives users a fast online percentage calculator for everyday percentage tasks.

It helps answer “what is X percent of Y?”, “what percentage change happened?” and “what was the original value?”.

The tool is useful for money, school maths, discounts, increases, decreases, marks and quick comparisons.

HOW TO USE THIS % TOOL

Pick the mode that matches your question, then enter the visible values.

Use % OF for part of a number, % CHANGE for old-to-new change, and REVERSE for original value.

Use CLEAR to reset, BACK to correct the active field, and SWAP for old/new change comparisons.

USE CASES & USERS

Shoppers use it for discounts, sale prices and savings.

Students use it for homework, GCSE maths, marks and percentage change questions.

Workers use it for invoices, growth, reductions, targets, reports and comparisons.

Home users use it for bills, budgets, recipes, rises and reductions.

FAQ

Can it find a percentage of a number? Yes. Use % OF.

Can it calculate percentage change? Yes. Enter old and new values.

Can it reverse a percentage? Yes. Enter the final value and the increase or decrease.

Does it work on phones? Yes. Inputs and controls are fitted inside the frame.

SEARCHABLE TERMS

Useful search phrases for this exact page:

How to calculate percentage, how to find percent of a number, how to work out percentage change, sale discount maths, original price calculator.