-56.12% is the change from 923 to 405
Calculation steps:
[( 405 - 923 ) ÷ 923] x 100 = -56.12%
Formula
Percentage change = [(405 - 923) / 923] x 100
Subtract the new number by the original number
405 - 923 = -518
-518 ÷ 923 = -0.5612134344528711
-0.5612134344528711 x 100 = -56.12%