-97.58% is the change from 455 to 11
Calculation steps:
[( 11 - 455 ) ÷ 455] x 100 = -97.58%
Formula
Percentage change = [(11 - 455) / 455] x 100
Subtract the new number by the original number
11 - 455 = -444
-444 ÷ 455 = -0.9758241758241758
-0.9758241758241758 x 100 = -97.58%