-99.56% is the change from 456 to 2
Calculation steps:
[( 2 - 456 ) ÷ 456] x 100 = -99.56%
Formula
Percentage change = [(2 - 456) / 456] x 100
Subtract the new number by the original number
2 - 456 = -454
-454 ÷ 456 = -0.9956140350877193
-0.9956140350877193 x 100 = -99.56%