-99.1% is the change from 446 to 4
Calculation steps:
[( 4 - 446 ) ÷ 446] x 100 = -99.1%
Formula
Percentage change = [(4 - 446) / 446] x 100
Subtract the new number by the original number
4 - 446 = -442
-442 ÷ 446 = -0.9910313901345291
-0.9910313901345291 x 100 = -99.1%