-28.86% is the change from 686 to 488
Calculation steps:
[( 488 - 686 ) ÷ 686] x 100 = -28.86%
Formula
Percentage change = [(488 - 686) / 686] x 100
Subtract the new number by the original number
488 - 686 = -198
-198 ÷ 686 = -0.2886297376093295
-0.2886297376093295 x 100 = -28.86%