-87.06% is the change from 680 to 88
Calculation steps:
[( 88 - 680 ) ÷ 680] x 100 = -87.06%
Formula
Percentage change = [(88 - 680) / 680] x 100
Subtract the new number by the original number
88 - 680 = -592
-592 ÷ 680 = -0.8705882352941177
-0.8705882352941177 x 100 = -87.06%