-84.94% is the change from 923 to 139
Calculation steps:
[( 139 - 923 ) ÷ 923] x 100 = -84.94%
Formula
Percentage change = [(139 - 923) / 923] x 100
Subtract the new number by the original number
139 - 923 = -784
-784 ÷ 923 = -0.8494041170097508
-0.8494041170097508 x 100 = -84.94%