How is percentage increase calculated?

Percentage Calculator

Calculate percentages easily: percentage of a number, percentage change, and what percentage X is of Y.

Your files are processed in your browser and are not uploaded to our server.

What is% of

30.00

Formula: (15 ÷ 100) × 200 = 30.00

is what % of=

20.00%

Formula: (30 ÷ 150) × 100 = 20.00%

Fromto=

+50.00%

Formula: ((120 - 80) ÷ 80) × 100 = 50.00% (Increase of 40)

Choose your desired percentage formula.

Type the numbers into the input fields.

Read the calculated answer with clear formula explanation.

Mode 1: What is X% of Y?

Mode 2: X is what percent of Y?

Mode 3: Percentage increase / decrease from X to Y

Instant calculation on keystroke with step-by-step math explanation

Everything you need to know about this tool and data privacy.

Subtract the old value from the new value, divide by the old value, and multiply by 100.

More tools in the same category you might find useful

Calculate your exact age in years, months, days, total hours, and view days remaining until your next birthday.

Calculate Goods and Services Tax (GST) for tax-inclusive and tax-exclusive amounts with standard tax slabs.

Calculate monthly loan EMI, total interest payable, and total payment for home, car, or personal loans.