How to Calculate Percentage Difference in Excel

Calculating the percentage difference between two values is a fundamental task for financial reporting and data analysis. To get this result, subtract the old value from the new value, then divide the result by the original (old) value. Formatting the resulting cell as a percentage will give you the clean, readable variance you need.

Our AI-powered tool handles this calculation for you, ensuring you don't run into common order-of-operation errors. Simply input your cell references, and we will generate a formula that accounts for positive growth, negative decline, and potential errors like division by zero.