-31.34% is the change from 686 to 471
Calculation steps:
[( 471 - 686 ) ÷ 686] x 100 = -31.34%
Formula
Percentage change = [(471 - 686) / 686] x 100
Subtract the new number by the original number
471 - 686 = -215
-215 ÷ 686 = -0.31341107871720114
-0.31341107871720114 x 100 = -31.34%