Percentage Calculator
Calculate percentages, find percentage increases and decreases, or determine the percentage difference between two values.
Percentage Calculator
About Percentage Calculations
Percentages are used to express a number as a fraction of 100. They are commonly used in finance, statistics, and everyday calculations.
How to Use This Calculator
Find Percentage
Calculate what is X% of Y. For example, what is 15% of 200.
Increase By Percentage
Calculate a value after it has been increased by a certain percentage. For example, 100 increased by 20%.
Decrease By Percentage
Calculate a value after it has been decreased by a certain percentage. For example, 100 decreased by 20%.
Percentage Difference
Calculate the percentage difference between two values. This shows how much one value differs from another as a percentage.
Common Percentage Formula
- Percentage = (Value / Total) × 100
- Value after increase = Original value × (1 + Percentage / 100)
- Value after decrease = Original value × (1 - Percentage / 100)
- Percentage difference = ((Value2 - Value1) / |Value1|) × 100
This calculator handles all of these calculations automatically, providing instant and accurate results for your percentage problems.
Common Applications
Finance
- Interest rates
- Investment returns
- Tax calculations
- Budget allocations
Shopping
- Discount calculations
- Sale prices
- Tax on purchases
- Tip calculations
Statistics
- Data analysis
- Growth rates
- Population changes
- Survey results
Science
- Concentration calculations
- Yield percentages
- Error margins
- Composition analysis