Percentage CalculatorsClient-Side Calculation Engine

Percentage Increase Calculator

Calculate percentage growth between two values or find a new value.

Select Calculation Mode

Popular Benchmark Examples:

The starting baseline number before growth.

The final ending number after change.

Calculation Result

Enter your values to calculate the percentage increase.

Formula:Percentage Increase = ((New Value − Original Value) ÷ Original Value) × 100

What is Percentage Increase and How is it Calculated?

Percentage increase measures how much a number has grown relative to its original starting value, expressed as a percentage of that initial figure. It is widely used in finance, business, economics, statistics, and daily life to track growth rates, inflation, salary raises, investment returns, and price surges. To compute the percentage increase between two numbers manually, follow three straightforward arithmetic steps:

Calculation Formula
Percentage Increase = ((New Value − Original Value) ÷ Original Value) × 100

Enter your values above to calculate.

Where:
Original Value= The starting baseline figure
New Value= The updated final figure
Worked Calculation Examples
Standard Growth (100 to 125)
Input:Original: 100, New: 125
Output:25% increase

Subtract 100 from 125 (25), divide by original 100 (0.25), and multiply by 100 to get 25%.

Popular Benchmark (100 to 120)
Input:Original: 100, New: 120
Output:20% increase

Difference of 20 divided by original 100 is 0.20, which equals a 20% increase.

Popular Benchmark (100 to 150)
Input:Original: 100, New: 150
Output:50% increase

Difference of 50 divided by original 100 equals 0.50, which is 50%.

Moderate Growth (50 to 75)
Input:Original: 50, New: 75
Output:50% increase

Difference of 25 divided by original 50 equals 0.50, which is 50%.

Salary Pay Raise ($60,000 to $66,000)
Input:Original: $60,000, Increase: 10%
Output:New Salary: $66,000

10% of $60,000 is $6,000. Adding $6,000 to $60,000 yields $66,000.

Price Surge Check (200 to 250)
Input:Original: 200, New: 250
Output:25% increase

Difference of 50 divided by original 200 is 0.25, or 25% growth.

Common Real-World Use Cases

Salary & Compensation Raises

Calculate your exact pay raise percentage when negotiating annual merit salary increases.

Retail Price Inflation & Markups

Track how much supplier costs or consumer product prices have risen compared to last year.

Website Traffic & User Growth

Evaluate marketing campaigns by computing month-over-month increases in visitors and signups.

Investment Returns

Measure portfolio value expansion and capital gains growth over starting principal.

How to Use the Percentage Increase Calculator
  1. 1Choose your calculation mode: Percentage Increase or New Value After Increase.
  2. 2Enter the starting (Original) value and the ending (New) value or percentage rate.
  3. 3Read the instant primary percentage growth or final value result.
  4. 4Review the step-by-step mathematical breakdown and formula details.
Pro Tips & Suggestions
  • •Always ensure the original baseline number is greater than zero to avoid division-by-zero errors.
  • •If your new value is smaller than the original, the calculator automatically alerts you that the result is a percentage decrease.
  • •For salary or price raises, Mode 2 lets you compute the exact new dollar amount after adding a percentage increase.
  • •To calculate percentage increase in Excel, use the formula: =((B1-A1)/A1) and format the cell as a Percentage.
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Frequently Asked Questions

Complete Guide to Percentage Increase Calculations

What is Percentage Increase?

Percentage increase measures how much a number has grown relative to its original starting value, expressed as a percentage of that initial figure. It is widely used in finance, business, economics, statistics, and daily life to track growth rates, inflation, salary raises, investment returns, and price surges.

How to Calculate Percentage Increase Step-by-Step

To compute the percentage increase between two numbers manually, follow three straightforward arithmetic steps:

Percentage Increase = ((New Value − Original Value) ÷ Original Value) × 100

For instance, if a price increases from $100 to $125: Step 1: Subtract original from new ($125 − $100 = $25 difference). Step 2: Divide by the original baseline ($25 ÷ $100 = 0.25). Step 3: Multiply by 100 to get a 25% increase.

Percentage Increase Quick Reference Table

Use this handy reference benchmark table for common number pairs to quickly find baseline growth rates:

Original ValueNew ValueDifferencePercentage IncreaseAction
100120+20+20%
100125+25+25%
100150+50+50%
5075+25+50%
200250+50+25%
80100+20+25%

How to Calculate Percentage Increase in Excel & Google Sheets

To calculate percentage increase in spreadsheets (Microsoft Excel, Google Sheets, Apple Numbers):

=((New_Value - Original_Value) / Original_Value)

Example: If cell A1 contains 100 (Original) and cell B1 contains 120 (New), enter =((B1-A1)/A1) in cell C1 and click Format as Percentage (%) in the menu bar to get 20%.

Percentage Increase vs. Percentage Change

Percentage change is an overarching mathematical concept measuring relative variation between two numbers. When the new value exceeds the original value, the percentage change is positive and specifically termed a percentage increase. When the new value is smaller, it represents a percentage decrease.

Percentage Increase vs. Percentage Difference

Percentage increase relies on a designated starting point or original reference value. Percentage difference, on the other hand, is used when comparing two numbers without establishing one as the "original" baseline (for instance, comparing the height of two mountains using their average value).

Real-World Applications & Use Cases

Salary & Compensation RaisesEvaluating an annual pay increase from $60,000 to $66,000 (a 10% raise).
Business Revenue & Sales GrowthTracking quarterly revenue growth from $100,000 to $150,000 (a 50% increase).
Price Inflation & Retail MarkupsCalculating wholesale cost increases passed on to consumers.
Website Traffic & User MetricsMeasuring growth in monthly active visitors or user conversions.
Academic & Test Score ImprovementsMeasuring progress when a test score moves from 70 to 85 (+21.43%).
Investment Portfolio GainsDetermining capital gains on stock investments over a holding period.

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