-84.74% is the change from 911 to 139
Calculation steps:
[( 139 - 911 ) ÷ 911] x 100 = -84.74%
Formula
Percentage change = [(139 - 911) / 911] x 100
Subtract the new number by the original number
139 - 911 = -772
-772 ÷ 911 = -0.8474204171240395
-0.8474204171240395 x 100 = -84.74%