Where percentages show up every day
- Shopping: 25% off a $60 jacket is $15 off. Our discount calculator handles sales, coupons and tax.
- Tips: 18% of a restaurant bill. Try the tip calculator.
- Pay and prices: a raise from $20 to $21.50 an hour is a 7.5% increase.
- Grades: 42 out of 50 on a test is 84%.
FAQ
How do I find a percentage of a number?
Turn the percent into a decimal and multiply. 15% of 240 is 0.15 × 240 = 36.
How do I work out what percent one number is of another?
Divide the part by the whole, then multiply by 100. 45 out of 60 is 45 ÷ 60 × 100 = 75%.
How do I calculate percentage change?
Subtract the old value from the new value, divide by the old value, then multiply by 100. From 50 to 65 is (65 − 50) ÷ 50 × 100 = a 30% increase.