-86.16% is the change from 939 to 130
Calculation steps:
[( 130 - 939 ) ÷ 939] x 100 = -86.16%
Formula
Percentage change = [(130 - 939) / 939] x 100
Subtract the new number by the original number
130 - 939 = -809
-809 ÷ 939 = -0.8615548455804047
-0.8615548455804047 x 100 = -86.16%