← back to Calculate & Convert

Percentage & Discount Calculator

Work out stacked discounts like 30%+20%, percentages of a number, and percent increase or decrease.

What does 50%+20% off really mean?

Stacked discounts do not add up: the second discount applies to the already reduced price. So 50%+20% off is a 60% discount, not 70%. This calculator shows the final price, how much you save, and the effective discount, plus three common percentage calculations: X% of Y, X as a percent of Y, and percent change.

tags: #percentage calculator #discount #percent change #shopping

How to install the app

This browser has not offered an automatic install button yet. Install it from the browser menu:

Android (Chrome)
Tap the ⋮ menu at the top right, then choose "Install app" or "Add to Home screen".
iPhone / iPad (Safari)
Tap the Share button (the square with an up arrow), then choose "Add to Home Screen". On iOS this only works in Safari.
Computer (Chrome / Edge)
Click the install icon (a monitor with a down arrow) at the right end of the address bar, or menu ⋮ → "Install Daily Apps".