-99.56% is the change from 454 to 2
Calculation steps:
[( 2 - 454 ) ÷ 454] x 100 = -99.56%
Formula
Percentage change = [(2 - 454) / 454] x 100
Subtract the new number by the original number
2 - 454 = -452
-452 ÷ 454 = -0.9955947136563876
-0.9955947136563876 x 100 = -99.56%