-4.52% is the change from 686 to 655
Calculation steps:
[( 655 - 686 ) ÷ 686] x 100 = -4.52%
Formula
Percentage change = [(655 - 686) / 686] x 100
Subtract the new number by the original number
655 - 686 = -31
-31 ÷ 686 = -0.04518950437317784
-0.04518950437317784 x 100 = -4.52%