-99.56% is the change from 450 to 2
Calculation steps:
[( 2 - 450 ) ÷ 450] x 100 = -99.56%
Formula
Percentage change = [(2 - 450) / 450] x 100
Subtract the new number by the original number
2 - 450 = -448
-448 ÷ 450 = -0.9955555555555555
-0.9955555555555555 x 100 = -99.56%