-42.47% is the change from 923 to 531
Calculation steps:
[( 531 - 923 ) ÷ 923] x 100 = -42.47%
Formula
Percentage change = [(531 - 923) / 923] x 100
Subtract the new number by the original number
531 - 923 = -392
-392 ÷ 923 = -0.4247020585048754
-0.4247020585048754 x 100 = -42.47%