-23.72% is the change from 430 to 328
Calculation steps:
[( 328 - 430 ) ÷ 430] x 100 = -23.72%
Formula
Percentage change = [(328 - 430) / 430] x 100
Subtract the new number by the original number
328 - 430 = -102
-102 ÷ 430 = -0.2372093023255814
-0.2372093023255814 x 100 = -23.72%