Percentage Calculator
Calculate percentages, changes, and differences
About Percentage Calculator
Calculate percentages, percentage changes, and percentage differences between values.
- Calculate what percentage one number is of another
- Find percentage increase or decrease between values
- Calculate relative percentage difference
- Copy results to clipboard
About Percentage Calculator
Calculate percentages, changes, and differences
How to Use
Use this tool to calculate percentages, changes, and differences. Simply input your data and get instant results.
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Frequently Asked Questions
How do I calculate percentage?
Basic percentage: (Part / Whole) × 100. For example, to find what percentage 25 is of 200: (25 / 200) × 100 = 12.5%. The tool automates these calculations.
What is percentage change?
Percentage change measures how much a value has increased or decreased relative to its original value. Formula: ((New Value - Old Value) / Old Value) × 100. Positive results indicate increase, negative indicates decrease.
How do I calculate percentage difference?
Percentage difference compares two values by finding the absolute difference relative to their average: (|Value1 - Value2| / ((Value1 + Value2) / 2)) × 100. Useful for comparing two distinct values.
Can I calculate percentage of a number?
Yes, to find X% of a number: (X / 100) × Number. For example, 15% of 200 = (15 / 100) × 200 = 30. The calculator handles this automatically.
When is percentage change positive or negative?
Percentage change is positive when the new value is greater than the old value (increase). It is negative when the new value is less than the old value (decrease).