calculators
Percentage Calculator
Solve everyday math problems involving percentages, including discounts, sales tax, markups, and percentage change over time.
Calculated on your device.
What is X% of Y?
What is% of=30.00
X is what percentage of Y?
is what % of=25.00%
Percentage Change (Increase / Decrease)
Fromto=Increase of 50.00%
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How to Use Percentage Calculator
1
Select Calculation Type
Choose 'What is X% of Y', 'X is what % of Y', or 'Percentage Increase/Decrease'.
2
Enter Numbers
Fill in the two input values.
3
View Result
Read the computed answer with the step-by-step formula explanation.
About Percentage Calculator
Percentage calculations express a ratio as a fraction of 100, calculated as (Value / Total) * 100.
Key Features
- What is X% of Y?
- X is what percentage of Y?
- Percentage increase/decrease from Value A to Value B
- Displays step-by-step calculation formulas
Frequently Asked Questions
Subtract the original number from the new number, divide the difference by the original number, and multiply by 100.
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