-77.58% is the change from 455 to 102
Calculation steps:
[( 102 - 455 ) ÷ 455] x 100 = -77.58%
Formula
Percentage change = [(102 - 455) / 455] x 100
Subtract the new number by the original number
102 - 455 = -353
-353 ÷ 455 = -0.7758241758241758
-0.7758241758241758 x 100 = -77.58%