Elementary Algebra

To find the percent change, we use the following formula: Percent of change = $\frac{New\ amount\ -\ Original\ amount}{Original\ amount}$ $\times$ 100% The original length was 8 centimeters, and the new length is 10 centimeters. Substituting these values into the formula yields: Percent change = $\frac{10-8}{8}$ $\times$ 100% Percent change = $\frac{2}{8}$ $\times$ 100% Percent change = 0.25 $\times$ 100% Percent change = 25%