-82.84% is the change from 816 to 140
Calculation steps:
[( 140 - 816 ) ÷ 816] x 100 = -82.84%
Formula
Percentage change = [(140 - 816) / 816] x 100
Subtract the new number by the original number
140 - 816 = -676
-676 ÷ 816 = -0.8284313725490197
-0.8284313725490197 x 100 = -82.84%