Percent Change in Weight

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) Initial Weight
• (WF) Final Weight

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

The Math / Science

The formula for percent change in weight or mass is:

    PC = (WF - WI) / WI

where:

• PC is the percent change in weight or mass
• WF is the final weight
• WI is the initial weight

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