Business calculators
Understand your pricing, profit and cash. Free calculations, with no account needed.
Use the same currency for all money fields. Calculations run in your browser; this plugin does not send or store your inputs.
Percentage change calculator
Use a positive starting value to compare non-negative sales, costs or other amounts. Percentage change is undefined when the original value is zero.
Formula and example
change = (new - original) / original × 100
An increase from 800 to 1,000 is 25%. A decrease from 1,000 to 800 is 20%.
Educational estimates only. Results depend on your inputs and assumptions. Check figures against your records before making business decisions. Displayed results are rounded to two decimal places; break-even units round up.
How to use this calculator
- Enter figures for the same period and use a single currency.
- Select Calculate to see your result.
- Review the example and assumptions before using the figure in a plan.
Common questions
What does a negative result mean?
The new value is lower than the original value. A move from 1,000 to 800 is a 20% decrease.
Can I calculate a change from zero?
Percentage change from zero is undefined. State the absolute change instead. This tool requires a positive original value and a non-negative new value.
Published by team bizcryped. Educational estimates, not personalised financial or tax advice. Calculations run in your browser; this tool does not transmit your entered amounts.