If you work with numbers in Microsoft Excel, knowing how to calculate percent change is essential. Whether you’re tracking sales growth, analyzing website traffic, or comparing monthly expenses, the percent change formula in Excel helps you quickly understand how much a value increased or decreased.

In this guide, you’ll learn the exact percent change formula Excel uses, how to handle errors like divide by zero, and how to calculate percentage increases, decreases, and differences step-by-step.

What Is the Percent Change Formula in Excel?

The percent change equation Excel uses is:

=(New Value - Old Value) / Old Value

After entering the formula, format the result as a percentage.

Example

This means the value increased by 20%.

This method is commonly used in business reports, financial analysis, and data dashboards.

Percent Increase Formula Excel

If the new value is greater than the old value, the result shows a percentage increase.

Formula

=(New-Old)/Old

Example

This is the percent increase formula Excel users rely on for sales growth, profits, and marketing metrics.

Percent Decrease Formula Excel

If the new value is smaller than the old value, the result will show a percentage decrease.

Formula

=(Old-New)/Old

Example

This percent decrease formula Excel method is useful when analyzing cost reductions or traffic drops.

Percent Difference Formula Excel

Sometimes you need to compare two numbers without labeling them old or new.

The percent difference formula Excel users apply is:

=ABS(A2-B2)/AVERAGE(A2,B2)

Example

This method is often used in statistics, quality testing, and financial comparisons.

Percent Change Calculation Excel (Step-by-Step)

Follow these steps:

1. Enter Old Value in column A
2. Enter New Value in column B
3. In column C enter:

=(B2-A2)/A2

4. Press Enter
5. Format the cell as Percentage

Now Excel will automatically calculate the percent change calculation Excel users need.

Percent Change Formula Excel Shortcut

Here is the fastest workflow.

1. Enter formula:

=(B2-A2)/A2

2. Press:

CTRL + SHIFT + %

This converts the result instantly into a percentage format.

This is the most useful percent change formula Excel shortcut for analysts and students.

Percent Change Formula Excel Divide by Zero Error

One common error is #DIV/0!, which happens when the old value is zero.

Example:

=(B2-A2)/A2

If A2 = 0, Excel cannot divide by zero.

Fix Using IFERROR

=IFERROR((B2-A2)/A2,"")

Or:

=IF(A2=0,"",(B2-A2)/A2)

This removes the percent change formula Excel divide by zero error.

Percent Change Formula Excel Negative Number

Sometimes the old value is negative.

Example:

Using the normal formula may give confusing results.

A safer formula is:

=(B2-A2)/ABS(A2)

Using ABS helps calculate percent change correctly when dealing with losses, debts, or negative balances.

Percentage Change Formula Excel Pivot Table

You can also calculate percentage change in Pivot Tables.

Steps

1. Create a Pivot Table
2. Add your values field
3. Click the value dropdown
4. Select Show Values As
5. Choose:

% Difference From

6. Select the base field (such as Month)

Excel will automatically calculate the percentage change formula Excel pivot table method.

This is commonly used for monthly reports, marketing analytics, and financial dashboards.

Practical Example

Formula:

=(B3-B2)/B2

Result:

30% increase

Businesses often track monthly percent change in Excel to analyze growth trends.

Why Percent Change Is Important

Understanding percent change calculation Excel methods helps you:

• Analyze business growth
• Compare performance data
• Track expenses and profits
• Measure marketing results
• Build professional Excel reports

This simple formula is one of the most used Excel calculations worldwide.

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Frequently Asked Questions

What is the percent change formula in Excel?

The percent change formula is:

=(New Value - Old Value) / Old Value

Format the result as a percentage to see the final value.

How do you calculate percent increase in Excel?

Use the formula:

=(New-Old)/Old

Then format the result as Percentage.

How do I fix divide by zero in Excel percent change?

Use the IFERROR function:

=IFERROR((B2-A2)/A2,"")

This prevents the #DIV/0! error.

How do you calculate percent difference in Excel?

Use this formula:

=ABS(A2-B2)/AVERAGE(A2,B2)

This calculates the percent difference between two values.

Can Excel calculate percent change in Pivot Tables?

Yes. In Pivot Tables select:

Show Values As → % Difference From

Excel will automatically compute the percent change.

Conclusion

The percent change formula in Excel is a powerful yet simple calculation that helps you analyze growth, decline, and performance trends.

By learning how to apply the percent increase formula Excel, percent decrease formula Excel, and percent difference formula Excel, you can transform raw data into meaningful insights. Handling errors like divide by zero and understanding negative number calculations will also make your Excel reports more accurate and professional.

Once you master these formulas, you’ll be able to perform percent change calculation Excel tasks quickly in everyday spreadsheets.