-85.75% is the change from 856 to 122
Calculation steps:
[( 122 - 856 ) ÷ 856] x 100 = -85.75%
Formula
Percentage change = [(122 - 856) / 856] x 100
Subtract the new number by the original number
122 - 856 = -734
-734 ÷ 856 = -0.8574766355140186
-0.8574766355140186 x 100 = -85.75%