-86.39% is the change from 904 to 123
Calculation steps:
[( 123 - 904 ) ÷ 904] x 100 = -86.39%
Formula
Percentage change = [(123 - 904) / 904] x 100
Subtract the new number by the original number
123 - 904 = -781
-781 ÷ 904 = -0.8639380530973452
-0.8639380530973452 x 100 = -86.39%