Percentage Increase / Decrease Operations
About Percentage Change
Percentage Change Calculator — compute percent increase, percent decrease, and multi-step compounded changes. Ideal for finance, pricing, analytics, and performance tracking.
What You Can Calculate
- Percentage Increase — growth from old value to new.
- Percentage Decrease — reduction from old to new.
- Percentage Addition — apply multiple increases sequentially.
- Percentage Subtraction — apply multiple decreases sequentially.
Common Examples
- Increase from 100 to 150 → +50%
- Decrease from 200 to 150 → -25%
- 100 with +10%, +5% → 100 × 1.10 × 1.05 = 115.5
How It Works
Percentage change compares the difference between two values relative to the original. Formula for basic change:
(New − Old) ÷ Old × 100
FAQs
Are multi-step changes compounded?
Yes — each step applies to the result of the previous step.
Do I enter percentages as decimals?
Enter regular percentages like 10, 5.5, 2.25 — not decimals.
Use this tool whenever you need to compare values, measure growth, see decline, or calculate real change over multiple steps.