-85.78% is the change from 858 to 122
Calculation steps:
[( 122 - 858 ) ÷ 858] x 100 = -85.78%
Formula
Percentage change = [(122 - 858) / 858] x 100
Subtract the new number by the original number
122 - 858 = -736
-736 ÷ 858 = -0.8578088578088578
-0.8578088578088578 x 100 = -85.78%