Percent Change Calculator

Formula: Percent Change = ((New Value - Starting Value) / |Starting Value|) × 100

How to Use This Tool

This tool has three modes. Choose the mode you need by clicking the radio button.

Mode one calculates the percent change between two numbers. Mode two finds the original number. Mode three finds the final number.

Click the "Calculate" button after filling in the fields to see the result.

Input Fields Explained

For the percent change mode, enter the starting number and the final number.

The tool uses these numbers to compute the difference and percent change.

In the starting value mode, enter the final number and the percent change. The tool computes the original number.

In the final value mode, enter the starting number and the percent change. The tool shows the final number.

Output and How to Read It

The result shows the numerical difference and the percent change.

A color code tells you if the change is positive or negative.

You will also see a simple breakdown of the math used in the calculation.

Limitations and Special Notes

The tool stops working if you enter non-numeric values.

If the starting value is zero, the percent change mode does not work.

Please check your numbers before you click the calculate button.

Common Use Cases

This calculator helps you check changes in prices or sales figures.

You can use it to track progress in tests or physical changes.

It is useful in many fields where a percent change is needed.

Final Thoughts

The percent change calculator is a practical tool for daily tasks.

Follow the steps, enter your values, and read the result carefully.

This tool simplifies math and saves time when you need quick answers.