-81.62% is the change from 680 to 125
Calculation steps:
[( 125 - 680 ) ÷ 680] x 100 = -81.62%
Formula
Percentage change = [(125 - 680) / 680] x 100
Subtract the new number by the original number
125 - 680 = -555
-555 ÷ 680 = -0.8161764705882353
-0.8161764705882353 x 100 = -81.62%