-90.77% is the change from 455 to 42
Calculation steps:
[( 42 - 455 ) ÷ 455] x 100 = -90.77%
Formula
Percentage change = [(42 - 455) / 455] x 100
Subtract the new number by the original number
42 - 455 = -413
-413 ÷ 455 = -0.9076923076923077
-0.9076923076923077 x 100 = -90.77%