Percent Change

Percent Increase
Percent Decrease

Use when comparing an old value to a new value or when comparing a start value to an end value.



Start Value End Value Percent Change
                     %


A positive answer for percent change represents a percent increase.
A negative answer for percent change represents a percent decrease.


Percent Change  =  
End Value - Start Valueabs(Start Value)
   x 100%
(where abs = absolute value)

(Enter values into the blue boxes. Answer will appear in the black box.)
Answers are rounded to 7 decimal places.



Examples

Example 1:
You start with 5 cookies and now you have 3 cookies.
What is the percent change in cookies?

Start Value = 5
End Value = 3
Percent Change = -40%
The negative sign for percent change represents a percent decrease.

Click to show this example in the calculator above.



Example 2:
You open a bank account and deposit $200. After one year, the amount in the bank account is $209.88
What is the percent change in the amount of money in the bank?

Start Value = 200
End Value = 209.88
Percent Change = 4.94%
The positive value for percent change represents a percent increase.

Click to show this example in the calculator above.



Example 3:
The price of a computer was $399.00
The price has been reduced to $299.00
What is the percent change in the price of the computer?

Start Value = 399.00
End Value = 299.00
Percent Change = -25.06%
The negative sign for percent change represents a percent decrease in price.

Click to show this example in the calculator above.