-68.82% is the change from 680 to 212
Calculation steps:
[( 212 - 680 ) ÷ 680] x 100 = -68.82%
Formula
Percentage change = [(212 - 680) / 680] x 100
Subtract the new number by the original number
212 - 680 = -468
-468 ÷ 680 = -0.6882352941176471
-0.6882352941176471 x 100 = -68.82%