-2.05% is the change from 439 to 430
Calculation steps:
[( 430 - 439 ) ÷ 439] x 100 = -2.05%
Formula
Percentage change = [(430 - 439) / 439] x 100
Subtract the new number by the original number
430 - 439 = -9
-9 ÷ 439 = -0.02050113895216401
-0.02050113895216401 x 100 = -2.05%