Find a percentage of a number, and the change and percentage change between two values.
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Calculated from your inputs
10% of first value
Difference
Percentage change
How this is calculated
Change is measured relative to the first value; a zero starting value has no defined percentage change.
Defaults are editable examples, not current provider quotes. Results are rounded for display. These are scenarios from your inputs, not live market data or investment advice.
About the Percentage calculator
The percentage calculator does three everyday sums at once: a percentage of a value, the difference between two values, and that difference as a percentage of the first.
How the Percentage calculator works
Percentage change = (Second value − First value) ÷ First value × 100
Enter the first value, a percentage and a second value. The change is measured against the first value.
Worked example
Example inputs
First value
₹1,000
Percentage
10%
Second value
₹1,200
Calculated result
10% of first value
₹100
Difference
₹200
Percentage change
20%
Why use a Percentage calculator?
Work out a discount or a hike.
Compare two prices, salaries or results.
Percentage calculator FAQs
Why is a 10% rise followed by a 10% fall not back to the start?
Because the fall is 10% of the larger number. The result ends slightly below the start.
What is the difference between percent and percentage points?
A move from 10% to 12% is a rise of 2 percentage points, but a 20% rise in the percentage itself.
What if the first value is zero?
A percentage change from zero is undefined, so the calculator shows only the difference.
Can the change be negative?
Yes, when the second value is smaller than the first.