-46.9% is the change from 420 to 223
Calculation steps:
[( 223 - 420 ) ÷ 420] x 100 = -46.9%
Formula
Percentage change = [(223 - 420) / 420] x 100
Subtract the new number by the original number
223 - 420 = -197
-197 ÷ 420 = -0.46904761904761905
-0.46904761904761905 x 100 = -46.9%