-85.35% is the change from 949 to 139
Calculation steps:
[( 139 - 949 ) ÷ 949] x 100 = -85.35%
Formula
Percentage change = [(139 - 949) / 949] x 100
Subtract the new number by the original number
139 - 949 = -810
-810 ÷ 949 = -0.8535300316122234
-0.8535300316122234 x 100 = -85.35%