No Results
No results found for your search. Please try another term.
Online Percentage Change Calculator
Calculate the percentage change between two values, showing increase or decrease with a clear plus or minus sign.
Percentage Change
+110%
Oops! Something went wrong. Please try again.
What Is This Tool?
The Percentage Change Calculator measures how much a value has changed, as a percentage of the original. Enter the original value and the new value, and it returns the change with a sign: a plus for an increase and a minus for a decrease. For example, going from 50 to 75 is a +50% change. It works with whole numbers, decimals, and negative values.
How to Use This Tool?
- Enter the original value.
- Enter the new value.
- Click Calculate to see the percentage change.
- Click the copy icon to copy the result.
Key Features
- Calculates the percentage change between two values.
- Shows a plus sign for increases and a minus sign for decreases.
- Handles whole numbers, decimals, and negatives.
- Rounds the result to two decimal places.
- Lets you copy the result with one click.
Examples
- From 50 to 75 is a +50% change.
- From 200 to 150 is a -25% change.
- From -10 to 1 is a +110% change.
- From 80 to 80 is no change.
Common Use Cases
- Tracking price increases or decreases over time.
- Measuring growth in sales, traffic, or followers.
- Comparing this month's figure to last month's.
- Checking how much a value rose or fell in reports.
- Solving percentage change problems for homework.
Tips & Best Practices
- Put the earlier or starting figure in the original value field.
- Put the later or final figure in the new value field.
- A positive result means an increase, a negative one means a decrease.
- Remember the original value cannot be zero.
- Copy the result directly to avoid typing mistakes.
Limitations
- The original value cannot be zero.
- Results are rounded to two decimal places.
- It measures change from the original, not the average of both values.
- Swapping the two values changes the result.
Frequently Asked Questions
- How is percentage change calculated?
- Subtract the original value from the new value, divide by the absolute value of the original, and multiply by 100.
- Why can't the original value be zero?
- The calculation divides by the original value, and dividing by zero is undefined, so percentage change from zero has no meaning.
- What does a negative result mean?
- A negative result means the value decreased from the original to the new value.
- Is percentage change the same as percentage difference?
- No. Percentage change measures from the original value, while percentage difference compares two values relative to their average.
Key Terminology
- Percentage change
- How much a value increased or decreased, as a percentage of the original.
- Original value
- The starting value that the change is measured from.
- New value
- The final value being compared to the original.
- Increase
- A positive change where the new value is larger than the original.
- Decrease
- A negative change where the new value is smaller than the original.