Percentage Calculator

Calculate percentages, discounts, percentage increases and decreases. Get instant results in your browser without saving your inputs.

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Instructions

How to use Percentage Calculator

01Choose percentage of a value, percentage ratio, percentage change or discount.
02Enter both values to calculate the result automatically.
03Read the result, rounded to at most 8 decimal places.

Support & FAQ

How is percentage change calculated?

The formula is (new value − original value) ÷ original value × 100. An original value of zero cannot be used.

How many decimal places are shown?

Results are rounded to a maximum of 8 decimal places.

What is an example of a 15% discount?

With a base price of 200 and a discount of 15, the discounted price is 170.