28.57% is the change from 455 to 585
Calculation steps:
[( 585 - 455 ) ÷ 455] x 100 = 28.57%
Formula
Percentage change = [(585 - 455) / 455] x 100
Subtract the new number by the original number
585 - 455 = 130
130 ÷ 455 = 0.2857142857142857
0.2857142857142857 x 100 = 28.57%