Percentage Calculator
Calculate percentages instantly. Find what percent one number is of another, calculate percentage change, tips, and discounts.
What is X% of Y?
Tip Calculator
Discount Calculator
Percentage Increase & Decrease Reference
Increase
| Base | +10% | +25% | +50% |
|---|---|---|---|
| 50 | 55.00000000000001 | 62.5 | 75 |
| 100 | 110.00000000000001 | 125 | 150 |
| 200 | 220.00000000000003 | 250 | 300 |
| 500 | 550 | 625 | 750 |
| 1000 | 1100 | 1250 | 1500 |
Decrease
| Base | -10% | -25% | -50% |
|---|---|---|---|
| 50 | 45 | 37.5 | 25 |
| 100 | 90 | 75 | 50 |
| 200 | 180 | 150 | 100 |
| 500 | 450 | 375 | 250 |
| 1000 | 900 | 750 | 500 |
Frequently Asked Questions
How do I calculate what percentage one number is of another?
Divide the part by the whole and multiply by 100. For example, 30 is 15% of 200 because (30 / 200) x 100 = 15%.
How do I calculate percentage change?
Percentage change = ((New Value - Old Value) / Old Value) x 100. A positive result means an increase; a negative result means a decrease.
How do I calculate a tip?
Multiply the bill amount by the tip percentage divided by 100. For example, a 20% tip on a $50 bill is $50 x 0.20 = $10.
How do I calculate a discount?
Multiply the original price by the discount percentage divided by 100 to get the savings. Subtract from the original price for the final price.