Goal completion
Compare how much you have completed with a total target. The two amounts must measure the same thing.
MAKE THE FORMULA CLEAR
Percentage change
Find how much a positive starting value increased or decreased. Use the same measurement unit for both entries.
Saved in this browser. Before changing devices, export a backup from My tools.
Percentage change
25%
Positive means an increase and negative a decrease. A starting value of 0 has no defined percentage change here.
Difference in value20
A positive result means an increase, measured relative to the original value.
Method and scope
Percentage change equals (new minus original) divided by original, times 100. The original value must be greater than zero.
A positive result means an increase and a negative result a decrease. The absolute difference is separate from the percentage.
Zero and negative starting baselines are outside this tool's definition. A 20% rise followed by a 20% fall does not return to the starting value.
What this helps you do
Find how much a positive starting value increased or decreased. Use the same measurement unit for both entries.
What to enter
Start with original value, then fill the other relevant fields in the units shown. The field hints explain the required format and examples.
How the calculation works
Percentage change equals (new minus original) divided by original, times 100. The original value must be greater than zero.
Worked example
A price changing from 200 to 250 increased by 25%. Reversing the entries gives a 20% decrease because the starting denominator changes.
Understanding the answer
A positive result means an increase and a negative result a decrease. The absolute difference is separate from the percentage.
Scope and limitations
Zero and negative starting baselines are outside this tool's definition. A 20% rise followed by a 20% fall does not return to the starting value.