-88.53% is the change from 680 to 78
Calculation steps:
[( 78 - 680 ) ÷ 680] x 100 = -88.53%
Formula
Percentage change = [(78 - 680) / 680] x 100
Subtract the new number by the original number
78 - 680 = -602
-602 ÷ 680 = -0.8852941176470588
-0.8852941176470588 x 100 = -88.53%