-31.42% is the change from 923 to 633
Calculation steps:
[( 633 - 923 ) ÷ 923] x 100 = -31.42%
Formula
Percentage change = [(633 - 923) / 923] x 100
Subtract the new number by the original number
633 - 923 = -290
-290 ÷ 923 = -0.314192849404117
-0.314192849404117 x 100 = -31.42%