Can it do tips and discounts?

Yes. Tip mode takes the bill, tip percent and party size to give tip, total and per-person; Discount mode shows how much you save and the final price.

How is percentage change calculated?

It uses (new − old) / |old| × 100%, and labels whether the value went up or down.

Percentage

Percentages, increase / decrease.

A free percentage calculator covering “X% of Y”, what-percent-of, percentage change, plus handy tip and discount modes. It computes as you type, all locally in your browser.

How to use

Pick a mode: X% of Y, X of Y, % change, Tip or Discount.
Enter the numbers and the result appears instantly.
Copy the result; Tip/Discount modes also show totals, per-person or final price.

FAQ

Can it do tips and discounts?: Yes. Tip mode takes the bill, tip percent and party size to give tip, total and per-person; Discount mode shows how much you save and the final price.
How is percentage change calculated?: It uses (new − old) / |old| × 100%, and labels whether the value went up or down.

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