What is the percentage increase formula?

The percentage increase formula is: ((New Value - Original Value) / Original Value) * 100.

How do you calculate a percentage increase in Excel?

In Excel or Google Sheets, calculate percentage increase using the formula =(B2-A2)/A2 where A2 is the starting value and B2 is the ending value.

To increase a number by P%, multiply the starting number by (1 + P / 100). For example, to add 20% to 50: 50 * (1 + 0.20) = 60.

Percentage increase measures the relative growth of a quantity. To find the percentage increase between two numbers, use the following math formula:

Percentage Increase = ((New Value - Original Value) / Original Value) × 100

Find the Net Increase: Subtract the starting number (Original Value) from the ending number (New Value). For example, if a stock grows from $40 to $50, the increase is 50 - 40 = $10.
Divide by the Original: Divide that difference by the starting number. In our example: 10 / 40 = 0.25.
Convert to a Percentage: Multiply the decimal result by 100. So, 0.25 × 100 = 25%.

Percentage increase calculations are used extensively across industries to track financial, economic, and operational growth:

Category	Real-World Example	Why it Matters
Salary Raise	Salary grows from $50,000 to $55,000.	Calculates a 10% increase in annual compensation.
Inflation	Monthly rent goes from $1,200 to $1,320.	Identifies a 10% hike in basic living expenses.
Business Growth	Monthly product sales increase from 400 to 500 units.	Measures a 25% sales growth rate.

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If you are working with large datasets in Excel or Google Sheets, use our interactive generator to create a percentage increase formula:

Original Value Cell

New Value Cell

Generated Formula=(B2-A2)/ABS(A2)