-85.41% is the change from 836 to 122
Calculation steps:
[( 122 - 836 ) ÷ 836] x 100 = -85.41%
Formula
Percentage change = [(122 - 836) / 836] x 100
Subtract the new number by the original number
122 - 836 = -714
-714 ÷ 836 = -0.854066985645933
-0.854066985645933 x 100 = -85.41%