-31.54% is the change from 688 to 471
Calculation steps:
[( 471 - 688 ) ÷ 688] x 100 = -31.54%
Formula
Percentage change = [(471 - 688) / 688] x 100
Subtract the new number by the original number
471 - 688 = -217
-217 ÷ 688 = -0.31540697674418605
-0.31540697674418605 x 100 = -31.54%