-86.32% is the change from 680 to 93
Calculation steps:
[( 93 - 680 ) ÷ 680] x 100 = -86.32%
Formula
Percentage change = [(93 - 680) / 680] x 100
Subtract the new number by the original number
93 - 680 = -587
-587 ÷ 680 = -0.8632352941176471
-0.8632352941176471 x 100 = -86.32%