Percentage Calculator
15% of 200 is 30. This percentage calculator lets you solve three types of calculations: find the percentage of a number, determine what percentage one value is of another, and calculate the percentage change between two amounts. Percentages are essential in finance (interest, discounts, taxes), statistics, and daily life. Enter your values and get instant results with two-decimal precision.
Frequently Asked Questions
How do you calculate the percentage of a number?
To calculate X% of Y, multiply Y by X and divide by 100. For example, 15% of 200 = 200 × 15 / 100 = 30. Our calculator performs this calculation automatically.
What is percentage change?
Percentage change measures how much a value has changed relative to its original value. The formula is: ((final value - initial value) / initial value) × 100. A positive result indicates an increase; a negative result indicates a decrease.
How do you find what percentage one number is of another?
To find what percentage X is of Y, divide X by Y and multiply by 100. For example, 30 is 15% of 200 because 30 / 200 × 100 = 15%.
What is the difference between percentage and percentage point?
A percentage expresses a proportion out of 100. A percentage point is the arithmetic difference between two percentages. If a rate rises from 10% to 12%, it increased by 2 percentage points, but the percentage increase is 20% (2/10 × 100).
How are percentages used in finance?
In finance, percentages are used to calculate bank interest, shopping discounts, tax rates (such as VAT, income tax), investment returns, inflation, and profit margins. They are the foundation of financial calculations.