Percent Change Calculator
Calculate the percent increase or decrease between two numbers.
Percent Change Calculator
Live result
Change
25
Percent change
25%
What it is
Percent change measures growth or shrinkage between two values — sales growth, price changes, weight loss, anything.
The formula
% change = (New − Old) ÷ Old × 100
Why it matters
Understanding percent change calculator helps you make a better-informed decision before you commit money or time.
Worked examples
Try the example
Use the defaults above as a starting point — then adjust the inputs to match your situation.
Common pitfalls
- Double-check the units on every input — most errors come from mixing units.
- Round at the end, not in the middle of the formula.
Frequently asked questions
Related calculators
Embed on your site
Free to embed — attribution required
Add this percent change calculator to your blog, help article, or landing page. Copy the snippet below.
<iframe src="https://searchcalculators.com/embed/percent-change" width="100%" height="620" frameborder="0" style="border:1px solid #e5e7eb;border-radius:12px;" title="Percent Change Calculator"></iframe>
Weekly playbook
One actionable business calculation every Tuesday.
Real frameworks for pricing, hiring, and software ROI. No fluff. Unsubscribe in one click.