# Percentage calculator: % of a number, change, markup

> Find a percent of a number, percentage change, add or subtract a percent and get the whole from a part. A fast, free percentage calculator online.

Home: https://funworks.app/en/ · HTML: https://funworks.app/en/calcie/percent/

*Six percent formulas on one screen, with no need to remember what to divide by what.*

## What it calculates

Our percentage calculator online solves six common problems: a percent of a number, what percent one number is of another, by what percent a value changed, adding a percent, subtracting a percent, and finding the whole from a known part.

You need these calculations every day: a store discount, a markup, a raise or a price increase, a share of a budget, the percent of a plan completed. Pick a formula on the tab, the field labels tell you what to enter, and the answer appears right away, with no “=” button.

- Percent of a number
- What percent one number is of another
- Percent change, with a plus or a minus
- Add or subtract a percent
- Find the whole from its part

## How to use it

1. Pick a formula from the tabs at the top.
2. Enter two numbers. The field labels tell you what goes where.
3. The result appears right away, no “=” needed.

## Example

15% of 200 → **30**

## FAQ

**How do I work out how many percent a price went up?**

Choose “Change” and enter the old and new price. 80 → 100 is +25%.

**How many decimal places?**

Up to four: 1 of 3 is 33.3333%.

**How do I add VAT or a percentage markup?**

Choose the “Add %” formula: 1,000 and 20% give 1,200, and Calcie shows separately how much was added. There's also a dedicated VAT mode that pulls the tax out of a total.

**Does the “Percent” mode work offline?**

Yes. Calcie does all its math right on your device, so the mode works on a plane, on the subway and out of town. Nothing is sent to any server, and the answer appears instantly.

**Is “Percent” available on iPad and Mac?**

Yes. On iPad the mode has its own layout with larger fields, and on a Mac with Apple Silicon Calcie runs in its iPad version and works from the keyboard. Your Premium purchase applies on every device signed in with your Apple ID.

**How do I switch to the “Percent” mode?**

Open the modes menu, the icon at the top left of the calculator's main screen, and choose “Percent”. Calcie remembers your choice: next time the app opens right in that mode.

Try it right here: https://funworks.app/en/calcie/percent/#calc · App Store: https://apps.apple.com/app/id6819202153

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FunWorks · https://funworks.app/en/ · support@funworks.app