-84.11% is the change from 856 to 136
Calculation steps:
[( 136 - 856 ) ÷ 856] x 100 = -84.11%
Formula
Percentage change = [(136 - 856) / 856] x 100
Subtract the new number by the original number
136 - 856 = -720
-720 ÷ 856 = -0.8411214953271028
-0.8411214953271028 x 100 = -84.11%