Percentage Calculator
Quickly calculate percentages, increases, decreases, and differences for business, finance, and everyday use.
Calculate Percentage
Enter values and select a calculation type to see results.
Formula
Basic percentage calculation:
Percentage change compares an original value to a new value to measure increase or decrease.
Understanding Percentages
Percentages are used across business, finance, and everyday decisions to compare values and measure change. Whether you're calculating discounts, profit margins, or growth rates, percentages provide a simple way to interpret data.
Common use cases
- Calculating discounts and sale prices
- Measuring business growth
- Understanding profit margins
- Tracking performance changes
How to calculate a percentage
Divide the percentage value by 100 and multiply it by the base number. For example, 20% of 500 equals 100.
Frequently Asked Questions
What is 20% of 500?
20% of 500 is 100. To calculate this, multiply 500 by 20 and divide by 100. Percentage calculations work the same way regardless of whether the value represents money, distance, weight, or any other measurement.
How do I calculate percentage increase?
Subtract the original value from the new value, divide the result by the original value, and multiply by 100. The answer shows the percentage increase between the two values.
How do I calculate percentage decrease?
Subtract the new value from the original value, divide by the original value, and multiply by 100. This gives the percentage decrease from the starting value.
What is percentage difference?
Percentage difference measures how different two values are relative to their average. It is commonly used when comparing two figures that have equal importance.
What is the difference between percentage change and percentage difference?
Percentage change compares a new value to an original value and shows the increase or decrease. Percentage difference compares two values relative to their average and does not assume one value is the starting point.
When should I use a percentage calculator?
Percentage calculators are useful for discounts, markups, profit margins, exam scores, financial analysis, population changes, statistics, and many everyday calculations involving proportions and growth.