Percent off calculator
Enter the original price and the percent off. This page shows the sale price and how much you save.
How percent off works
Sale price = original price × (1 − percent off ÷ 100). A $80 item at 25% off saves $20, so you pay $60. At 10% off you pay $72. At 50% off you pay $40.
“20% off” is not the same as “pay 20%.” Twenty percent off means you still pay 80% of the original price.
Keep the result on a tape
HistoryCalc is an iPhone calculator with a history tape and the same percent-off keys. Each result stays on the tape, so you can edit a line, add a note, or share the price. The latest 10 lines are free. Unlimited tape is a one-time unlock.