-51.25% is the change from 923 to 450
Calculation steps:
[( 450 - 923 ) ÷ 923] x 100 = -51.25%
Formula
Percentage change = [(450 - 923) / 923] x 100
Subtract the new number by the original number
450 - 923 = -473
-473 ÷ 923 = -0.5124593716143012
-0.5124593716143012 x 100 = -51.25%