Percentage Change Calculator

Cannot be zero

Result:

Welcome to our Percentage Change Calculator. This tool calculates the percentage increase or decrease between two values, helping you understand relative changes in data.

What is Percentage Change?

Percentage change measures the relative change between an old value and a new value, expressed as a percentage of the original value.

Percentage Change Formula

Percentage Change = ((New Value - Old Value) / Old Value) × 100%
Percentage Increase

When: New value > Old value

Result: Positive percentage

Example: $100 to $120 = 20% increase

Formula: ((120-100)/100) × 100 = 20%

Percentage Decrease

When: New value < Old value

Result: Negative percentage (shown as positive)

Example: $100 to $80 = 20% decrease

Formula: ((80-100)/100) × 100 = -20%

Step-by-Step Calculation

Example: Price change from $50 to $65

Step 1: Identify values

Old Value = $50, New Value = $65

Step 2: Calculate absolute change

Change = $65 - $50 = $15

Step 3: Calculate percentage change

Percentage Change = ($15 / $50) × 100% = 30%

Result: 30% increase

Real-World Applications

  • Financial analysis: Stock price changes, profit/loss calculations
  • Business metrics: Sales growth, market share changes
  • Economics: Inflation rates, GDP growth
  • Statistics: Data comparison and trend analysis
  • Scientific research: Experimental result comparison

Common Examples

Price Increase

$100 → $125

25% increase

Common in retail pricing
Discount

$100 → $75

25% decrease

Sales and promotions
No Change

$100 → $100

0% change

Stable values

Calculator Categories

Explore our comprehensive collection of calculation tools organized by category. Find exactly what you need for math, science, finance, health, and more.

12

Categories
100+ Calculators
Instant Results
Search Calculators

All Categories

Choose from our specialized calculator categories

Algebra

Comprehensive algebra calculators for equations, roots, exponents, logarithms, and more

22 calculators
Explore Algebra
Chemistry

<p>Chemistry can be a complex subject, but it doesn't have to be overwhelming! With our powerful ch…

1 calculator
Explore Chemistry
Construction

Construction calculators.

1 calculator
Explore Construction
Conversions

In today's interconnected world, converting units and measurements is a common task. But who has ti…

23 calculators
Explore Conversions
Everyday Life

<p>In our busy daily lives, we often encounter situations that require quick calculations. Whether …

6 calculators
Explore Everyday Life
Finance

<p>Our finance calculators help you make smart choices about money. Whether you're saving up for so…

3 calculators
Explore Finance
Fractions

Comprehensive fraction calculators for all fraction operations

16 calculators
Explore Fractions
Health

<p>Keeping track of your health can be a challenge, but it doesn't have to be! With our amazing hea…

3 calculators
Explore Health
Maths

Math can seem like a tough subject, but it doesn't have to be! With our awesome math calculator, yo…

60 calculators
Explore Maths
Percentage

Comprehensive percentage calculators for discounts, taxes, tips, and voting calculations

4 calculators
Explore Percentage
Sports

p>In the world of sports, even the slightest edge can make a big difference. Whether you're a profe…

1 calculator
Explore Sports
Time and Date

<p>Keeping track of dates, times, and schedules can be a daunting task. Whether you're planning a p…

3 calculators
Explore Time and Date