What is this calculator?
Find the signed change from an original value to a new value.
What can you use it for?
Use it when solving an exercise, checking a result, or working with the particular quantities shown in this form. Find the signed change from an original value to a new value.
How to use it
- Enter original value.
- Enter new value.
- Select Calculate (or Generate for random tools).
- Read the answer and any additional results below the form. Check the units and the limits of the method.
Formula and method
The formula uses the units and definitions shown above. Each input is substituted before the arithmetic is evaluated; the calculated output is rounded for display.
Worked example
Original value: 100, New value: 120. The result is 20 % (result).
Assumptions and limits
Inputs and outputs must stay within the supported finite number range. Displayed decimal answers may be rounded.
Frequently asked questions
What inputs does the Percentage Change Calculator need?
Use original value, new value. Read the answer and any additional results below the form. Check the units and the limits of the method.
What assumptions apply to the Percentage Change Calculator?
Inputs and outputs must stay within the supported finite number range. Displayed decimal answers may be rounded.