Percentage Calculator
Performs percentage calculations including finding percentages, percentage change, and differences
What is X% of Y?
X is what % of Y?
% Change from X to Y
Enter a percentage and number above
Enter a part and whole above
Enter old and new values above
Frequently Asked Questions
How do I calculate a percentage of a number?
Multiply the number by the percentage divided by 100. To find 15% of 200: 200 x (15/100) = 200 x 0.15 = 30. Alternatively, move the decimal point two places left in the percentage and multiply.
How do I calculate percentage change?
Subtract the old value from the new value, divide by the old value, and multiply by 100. If sales went from $50,000 to $65,000: ($65,000-$50,000)/$50,000 x 100 = 30% increase. A negative result means a decrease.
What is the difference between percentage points and percent change?
Percentage points measure the absolute difference between two percentages. If a rate goes from 5% to 8%, that is a 3 percentage point increase but a 60% percent change. This distinction matters in finance, statistics, and reporting.
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