ToolChameleon

Percentage Calculator

Work out percentages, percentage change, increases and discounts.

What is% of=?
is what % of=?
% change fromto=?
Increaseby %=?
Decreaseby %=?

How to use it

  1. 1Find the calculation you need.
  2. 2Fill in the two numbers.
  3. 3Read the answer instantly.

FAQs

How is percentage change worked out?

(new − original) ÷ original × 100. A rise from 50 to 75 is +50%.

How do I work out a discount?

Use Decrease: decreasing 80 by 25% gives 60.

Is anything sent to a server?

No. Everything is calculated in your browser, so it works instantly and nothing you enter is stored.

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