# Percent Change in Length

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vCalc.Percent Change in Length
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The Percentage Change in Length calculator computes the ratio of change in length from an initial length or distance to a final length or distance.

INSTRUCTIONS: Choose units and enter the following:

• (LI)  This is the initial length.
• (LF)  This is the final length.

Percent Change in Length (PC):  The calculator the percent change in length or distance.

#### The Math / Science

PC = (LF - LI) / LI

where: