Percentage Calculator

Calculate percentages quickly and easily. Find X% of a number, what percentage one number is of another, or the percentage change between two values.

What is X% of Y?

What is% of=30.00

X is what % of Y?

is what % of=15.00%

Percentage Change

Fromto=+25.00%

How Is This Calculated?

Three common percentage calculations: 1. What is X% of Y? → (X / 100) × Y 2. X is what % of Y? → (X / Y) × 100 3. Percentage change from A to B? → ((B - A) / A) × 100 Positive percentage change indicates an increase; negative indicates a decrease.

Frequently Asked Questions

How do I calculate a percentage?

To find a percentage, divide the part by the whole and multiply by 100. For example, 25 out of 200 = (25/200) × 100 = 12.5%.

How do I calculate percentage increase or decrease?

Percentage change = ((New Value - Old Value) / Old Value) × 100. A positive result is an increase, negative is a decrease.

Disclaimer: This calculator provides estimates for informational purposes only and should not be considered financial advice. Results may vary based on your specific circumstances. Please consult a qualified financial professional for advice tailored to your situation.