Calculate percentages, percentage change, and percentage differences instantly.
Frequently Asked Questions
How do you calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 20% of 150 is (20 / 100) x 150 = 30.
How do you calculate percentage change?
Subtract the old value from the new value, divide by the absolute old value, then multiply by 100: ((new – old) / |old|) x 100.
How do I find what percentage one number is of another?
Divide the part by the whole and multiply by 100: (part / whole) x 100.