-86.42% is the change from 906 to 123
Calculation steps:
[( 123 - 906 ) ÷ 906] x 100 = -86.42%
Formula
Percentage change = [(123 - 906) / 906] x 100
Subtract the new number by the original number
123 - 906 = -783
-783 ÷ 906 = -0.8642384105960265
-0.8642384105960265 x 100 = -86.42%