Percentage & Discount
Find a percentage, a change, or a sale price.
Your estimate
Enter your values, then select Calculate.
How this is calculated
Percentage of a number = percentage ÷ 100 × number. Change = (new − original) ÷ |original| × 100; a zero original has no defined percentage change. Sale price = original × (1 − discount ÷ 100).
Discounts must be between 0% and 100%; prices cannot be negative. Tax and shipping are not included.