-76.76% is the change from 680 to 158
Calculation steps:
[( 158 - 680 ) ÷ 680] x 100 = -76.76%
Formula
Percentage change = [(158 - 680) / 680] x 100
Subtract the new number by the original number
158 - 680 = -522
-522 ÷ 680 = -0.7676470588235295
-0.7676470588235295 x 100 = -76.76%