-84.56% is the change from 680 to 105
Calculation steps:
[( 105 - 680 ) ÷ 680] x 100 = -84.56%
Formula
Percentage change = [(105 - 680) / 680] x 100
Subtract the new number by the original number
105 - 680 = -575
-575 ÷ 680 = -0.8455882352941176
-0.8455882352941176 x 100 = -84.56%