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`PC = ( WF - WI )/( WI )`

Enter a value for all fields

The **Percentage Change in Weight **calculator computes the ratio of change in weight or mass from an initial to a final weight or mass.

**INSTRUCTIONS:** Choose units and enter the following:

- (
**WI**) This is the initial weight. - (
**WF**) This is the final weight.

**Percent Change in Weight (PC):** The calculator the percent change in weight.

- Percent Change in Length
- Percent Change in Area
- Percent Change in Volume
- Percent Change in Flow Rate
- Percent Change in Weight or Mass
- Change in Mass

The formula for percent change in volume is:

PC = (WF - WI) / WI

where:

- PC is the percent change in volume
- VF is the final weight
- VI is the initial weight