Percentage Calculator
Quick percentage of a value, percentage increase and percentage decrease calculations for everyday Australian maths, shopping discounts and quick sums.
15% of 25037.5
Increase by %287.5
Decrease by %212.5
How this calculator works
Find a percentage of a number, work out what one number is as a percentage of another, or calculate a percentage increase or decrease between two values.
Frequently asked questions
How do I calculate a discount?
Enter the discount percentage and the original price — the decrease result is the sale price.
How do I work out percentage change?
Divide the change by the original value and multiply by 100.
Is GST just a percentage?
Yes, but removing it requires dividing by 11 rather than subtracting 10%. Use the GST Calculator.
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