-26.42% is the change from 439 to 323
Calculation steps:
[( 323 - 439 ) ÷ 439] x 100 = -26.42%
Formula
Percentage change = [(323 - 439) / 439] x 100
Subtract the new number by the original number
323 - 439 = -116
-116 ÷ 439 = -0.2642369020501139
-0.2642369020501139 x 100 = -26.42%