Enter the initial mass (kg) and the final mass (kg) into the Percent Change in Mass Calculator. The calculator will evaluate and display the Percent Change in Mass.

## Percent Change in Mass Formula

The following formula is used to calculate the Percent Change in Mass.

PM = (Mf-Mi)/Mi*100
• Where PM is the Percent Change in Mass (%)
• Mi is the initial mass (kg)
• Mf is the final mass (kg)

To calculate the percentage change in mass, divide the change in mass by the initial mass, then multiply by 100.

## How to Calculate Percent Change in Mass?

The following example problems outline how to calculate Percent Change in Mass.

Example Problem #1:

1. First, determine the initial mass (kg).
• The initial mass (kg) is given as: 30.
2. Next, determine the final mass (kg).
• The final mass (kg) is provided as: 50.
3. Finally, calculate the Percent Change in Mass using the equation above:

%M = (Mf-Mi)/Mi*100

The values given above are inserted into the equation below and the solution is calculated:

%M = (50-30)/30*100 = 66.67 (%)

Example Problem #2:

For this problem, the variables needed are provided below:

initial mass (kg) = 60

final mass (kg) = 80

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer.

%M = (Mf-Mi)/Mi*100 = ?