Percentage Calculator QuickPercent

Percentage Change Calculator

Easily compute percentage change with our powerful and intuitive online calculator. Whether you're tracking financial performance, comparing data sets, or solving percentage-based math problems, our tool ensures fast and accurate results. Simplify your workflow and eliminate manual calculations with our efficient calculator designed to meet your needs.

Quick tip:

Press Tab key to move to the next field. Press Shift + Tab keys to move to the previous field. Press Enter key to calculate the result.

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Percentage change (increase/decrease)

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To calculate the percentage change, percent increase, or decrease percent, type a starting number in the first field. Enter the final number in the second field.

Examplebefore: 200, after: 240, percentage change: +20%

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How to calculate the percentage change

Calculating percentage change is straightforward and useful for understanding how much something has increased or decreased over time. Let's break it down step by step!

Step 1: Understand What Percentage Change Means

Percentage change measures how much something has either grown or shrunk in comparison to its original value. It's like tracking whether the temperature has risen or dropped since the morning!

Step 2: Gather Your Numbers

You need two numbers: the original number (before) and the new number (after). For example:

  • Before: 200 (the original number)
  • After: 150 (the new number)

Step 3: Find the Difference

To calculate how much the number has changed, subtract the original number from the new number:

Difference = After - Before

In this example: Difference = 150 - 200 = -50

Step 4: Calculate the Percentage Change

Now, divide the difference by the original number and multiply by 100 to find the percentage change:

Percentage Change = (Difference / Before) · 100%

For this example: Percentage Change = (-50 / 200) · 100% = -25%

Step 5: Interpret the Result

A negative percentage (-25%) means the number has decreased by 25%. A positive percentage would indicate growth or increase, whereas a negative percentage shows a decrease or reduction.

Let's Recap:

  • Percentage Change shows how much something has increased or decreased compared to its original value.
  • Gather Your Numbers: Before and After.
  • Find the Difference: Subtract Before from After.
  • Calculate the Percentage Change: Divide the Difference by Before and multiply by 100.
  • Interpret the Result: A positive result means growth, while a negative result indicates a decrease.

Calculate percentage change in Excel or Google Sheets

Formula is =(B2-A2)/A2*100, where A2 is the "Before" number, and B2 is the "After" number.

percentage change in Excel or Google Sheets
  • Before: This column represents the number before change.
  • After: This column represents the number after change.
  • % Change: This column displays what is the percentage change.

Popular Calculations to Find Percentage Change

1. Price Increase Percentage

Scenario: A product's price increased from $50 to $75. What is the percentage increase?

Calculation: Find the percentage increase.

Formula: Percentage Change = [(New Value - Old Value) / Old Value] × 100%

Percentage Change = [($75 - $50) / $50] × 100%

Percentage Change = ($25 / $50) × 100% = 0.50 × 100% = 50%

Result: The percentage increase is 50%.

2. Salary Decrease Percentage

Scenario: Your salary decreased from $60,000 to $54,000. What is the percentage decrease?

Calculation: Find the percentage decrease.

Formula: Percentage Change = [(Old Value - New Value) / Old Value] × 100%

Percentage Change = [($60,000 - $54,000) / $60,000] × 100%

Percentage Change = ($6,000 / $60,000) × 100% = 0.10 × 100% = 10%

Result: The percentage decrease is 10%.

3. Cost Increase Percentage

Scenario: The cost of a meal increased from $80 to $96. What is the percentage increase?

Calculation: Find the percentage increase.

Formula: Percentage Change = [(New Value - Old Value) / Old Value] × 100%

Percentage Change = [($96 - $80) / $80] × 100%

Percentage Change = ($16 / $80) × 100% = 0.20 × 100% = 20%

Result: The percentage increase is 20%.

4. Tuition Fee Decrease Percentage

Scenario: The tuition fee decreased from $1,200 to $1,000. What is the percentage decrease?

Calculation: Find the percentage decrease.

Formula: Percentage Change = [(Old Value - New Value) / Old Value] × 100%

Percentage Change = [($1,200 - $1,000) / $1,200] × 100%

Percentage Change = ($200 / $1,200) × 100% = 0.1667 × 100% = 16.67%

Result: The percentage decrease is approximately 16.67%.

5. Value Appreciation Percentage

Scenario: An asset appreciated from $500 to $625. What is the percentage appreciation?

Calculation: Find the percentage appreciation.

Formula: Percentage Change = [(New Value - Old Value) / Old Value] × 100%

Percentage Change = [($625 - $500) / $500] × 100%

Percentage Change = ($125 / $500) × 100% = 0.25 × 100% = 25%

Result: The percentage appreciation is 25%.

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