Key takeaways
- Percentage Calculator covers the common cases: what's X% of Y, percentage increase/decrease, and discount pricing.
- Handy for checking a sale discount is actually what it claims to be, or working out a tip or tax quickly.
- No formulas to remember — enter the numbers you have and it works out the rest.
Using it
Open Percentage Calculator and pick the calculation that matches what you're trying to work out:
- What is X% of Y? — for tips, commissions, or a cut of a total.
- Percentage change — for comparing two numbers (this month's sales vs last month's, for instance).
- Discount price — enter the original price and discount percentage to see the final price and amount saved.
Frequently asked questions
Can it calculate a reverse discount (find the original price before a sale)?
Yes — enter the sale price and discount percentage, and it works backward to the original price.
Does it handle negative percentages for a loss?
Yes, a percentage decrease (a price drop, a loss between two numbers) is calculated the same way, just with a negative result shown.