-85.09% is the change from 939 to 140
Calculation steps:
[( 140 - 939 ) ÷ 939] x 100 = -85.09%
Formula
Percentage change = [(140 - 939) / 939] x 100
Subtract the new number by the original number
140 - 939 = -799
-799 ÷ 939 = -0.8509052183173589
-0.8509052183173589 x 100 = -85.09%