Calculate percentages, percentage changes, increases, decreases, and find original values. Multiple calculation modes with formulas.
What is 15% of 230? What percentage is 45 of 300? How much does a price change from 80 to 100? This tool answers all three types of percentage questions with a single input form.
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You need three related answers fast: 15% of 240, what percent 36 is of 240, and the change from 240 to 300.
Inputs
15% of 240 · 36 is what % of 240 · 240 → 300
Results
36 15% +25% increase
The three percentage questions people constantly mix up, "of", "is what percent of", and "percent change", are handled as distinct modes so you do not have to remember which formula goes where. Each shows the calculation, not just the number.
What is 15% of 230? What percentage is 45 of 300? How much does a price change from 80 to 100? This tool answers all three types of percentage questions with a single input form.
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Every calculation runs locally in your browser. Your numbers and expressions are not transmitted or stored.