-99.41% is the change from 680 to 4
Calculation steps:
[( 4 - 680 ) ÷ 680] x 100 = -99.41%
Formula
Percentage change = [(4 - 680) / 680] x 100
Subtract the new number by the original number
4 - 680 = -676
-676 ÷ 680 = -0.9941176470588236
-0.9941176470588236 x 100 = -99.41%