-82.79% is the change from 680 to 117
Calculation steps:
[( 117 - 680 ) ÷ 680] x 100 = -82.79%
Formula
Percentage change = [(117 - 680) / 680] x 100
Subtract the new number by the original number
117 - 680 = -563
-563 ÷ 680 = -0.8279411764705882
-0.8279411764705882 x 100 = -82.79%