-76.84% is the change from 531 to 123
Calculation steps:
[( 123 - 531 ) ÷ 531] x 100 = -76.84%
Formula
Percentage change = [(123 - 531) / 531] x 100
Subtract the new number by the original number
123 - 531 = -408
-408 ÷ 531 = -0.768361581920904
-0.768361581920904 x 100 = -76.84%