Business Calculators
Percentage Change Calculator
Calculate percent increase or decrease between an original value and a new value.
Informational estimate only — not financial, tax, accounting, or legal advice.
Formula: (new value − original value) ÷ absolute original value × 100.
Percentage change workflow tips
Percentage change is useful when comparing old and new numbers, but the context usually needs another calculator before a final decision.
Compare price changes
Use Discount Calculator for sale prices, then compare before/after totals here.
Check margin impact
After a change, use Profit Margin Calculator or Markup Calculator for pricing context.
Calculate a simple percent first
Use Percentage Calculator when you need X% of a number rather than old-to-new change.
What this tool does
Use this calculator for quick growth, decline, pricing, traffic, revenue, or KPI change estimates with a clear formula and local-only math.
Common use cases
Calculate percent increase or decrease between an original value and a new value for growth, pricing, KPI, or traffic comparisons.
Use Percentage Change Calculator for quick planning math, pricing checks, estimates, or operational comparisons. Treat the result as informational and verify important business, legal, tax, or accounting decisions separately.
How to use it
- Enter the original value and the new value.
- Review the percentage change, amount changed, and direction.
- Use the result as an informational estimate, not financial, tax, accounting, or legal advice.
Example workflow
Enter the known values, review the assumptions and calculated result, then compare scenarios by changing one number at a time. Use the output for lightweight planning, not as professional financial, tax, legal, or accounting advice.
Privacy note
Local-only calculation with no persistence. Results are informational estimates only and are not financial, tax, accounting, or legal advice.
FAQ
What is the percentage change formula?
Percentage change equals new value minus original value, divided by the absolute original value, multiplied by 100.
Can the original value be zero?
No. Percentage change cannot be calculated from an original value of zero because the formula would divide by zero.
Is this financial or accounting advice?
No. This calculator provides informational estimates only and is not financial, tax, accounting, legal, or investment advice.
Are my numbers uploaded?
No. The calculation runs locally in your browser and ClearUtils does not store or upload your inputs.
Explore more tools
Browse the Business Calculators hub or continue with the Business Calculator Toolkit when this task is part of a larger workflow.
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