-43.83% is the change from 454 to 255
Calculation steps:
[( 255 - 454 ) ÷ 454] x 100 = -43.83%
Formula
Percentage change = [(255 - 454) / 454] x 100
Subtract the new number by the original number
255 - 454 = -199
-199 ÷ 454 = -0.43832599118942733
-0.43832599118942733 x 100 = -43.83%