-24.53% is the change from 428 to 323
Calculation steps:
[( 323 - 428 ) ÷ 428] x 100 = -24.53%
Formula
Percentage change = [(323 - 428) / 428] x 100
Subtract the new number by the original number
323 - 428 = -105
-105 ÷ 428 = -0.24532710280373832
-0.24532710280373832 x 100 = -24.53%