-55.25% is the change from 686 to 307
Calculation steps:
[( 307 - 686 ) ÷ 686] x 100 = -55.25%
Formula
Percentage change = [(307 - 686) / 686] x 100
Subtract the new number by the original number
307 - 686 = -379
-379 ÷ 686 = -0.5524781341107872
-0.5524781341107872 x 100 = -55.25%