Percentage Calculator
Ten calculators in one: percentages, percentage change and difference, discounts, tips, VAT and sales tax, plus markup and margin. Every result updates as you type, with the formula shown underneath.
Find out what a given percentage of a number equals.
Find what percentage one number is of another.
Find the original (100%) number when you know a part and its percentage.
Find the percentage increase or decrease between two values.
Increase or decrease a number by a given percentage.
Compare two values when neither one is the "original". This uses their average as the base, so the order does not matter.
Find the sale price and exactly how much you save.
Work out the tip, the total, and what each person owes.
Add tax to a price, or work backwards from a tax-inclusive price. Removing 20% is not the same as subtracting 20%.
Enter cost and selling price to get profit, margin and markup side by side. A 50% markup is only a 33.3% margin.