-4.23% is the change from 449 to 430
Calculation steps:
[( 430 - 449 ) ÷ 449] x 100 = -4.23%
Formula
Percentage change = [(430 - 449) / 449] x 100
Subtract the new number by the original number
430 - 449 = -19
-19 ÷ 449 = -0.042316258351893093
-0.042316258351893093 x 100 = -4.23%