Percentage Calculator
Percentage Between Numbers
Percentage of a Value
About Percentage Calculator
The Percentage Calculator provides two useful tools: calculating what percentage one number is of another, and finding how much a certain percentage of a value is. These tools help with various calculations like test scores, sales tax, tips, and others.
How to Use
- Enter the first number.
- Enter the second number.
- The result shows what percentage the first number is of the second number.
Calculate Percentage Between Numbers
- Enter the percentage you want to calculate.
- Enter the number you want to find the percentage of.
- The result shows how much that percentage is of the base value.
Calculate Percentage of a Value
Frequently Asked Questions
What is a percentage?
A percentage is a way to express a number as a fraction of 100. It is often denoted using the percent sign "%". For example, 50% means 50 out of 100, or one-half.
How do I calculate a percentage increase?
To calculate a percentage increase, subtract the original value from the new value, divide by the original value, and multiply by 100. For example, if a price increased from $100 to $150, the percentage increase would be ((150 - 100) / 100) × 100 = 50%.
How do I calculate a percentage decrease?
To calculate a percentage decrease, subtract the new value from the original value, divide by the original value, and multiply by 100. For example, if a price decreased from $100 to $80, the percentage decrease would be ((100 - 80) / 100) × 100 = 20%.
What is the difference between percentage and percentage points?
A percentage point is the difference between two percentages. For example, if an interest rate increases from 5% to 7%, it has increased by 2 percentage points, not 2%. The percentage increase would be 40% ((7 - 5) / 5 × 100).
How do I convert a decimal to a percentage?
To convert a decimal to a percentage, multiply by 100 and add the % sign. For example, 0.75 becomes 75%.