-99.1% is the change from 223 to 2
Calculation steps:
[( 2 - 223 ) ÷ 223] x 100 = -99.1%
Formula
Percentage change = [(2 - 223) / 223] x 100
Subtract the new number by the original number
2 - 223 = -221
-221 ÷ 223 = -0.9910313901345291
-0.9910313901345291 x 100 = -99.1%