-39.39% is the change from 688 to 417
Calculation steps:
[( 417 - 688 ) ÷ 688] x 100 = -39.39%
Formula
Percentage change = [(417 - 688) / 688] x 100
Subtract the new number by the original number
417 - 688 = -271
-271 ÷ 688 = -0.3938953488372093
-0.3938953488372093 x 100 = -39.39%
Example