28.89% is the change from 450 to 580
Calculation steps:
[( 580 - 450 ) ÷ 450] x 100 = 28.89%
Formula
Percentage change = [(580 - 450) / 450] x 100
Subtract the new number by the original number
580 - 450 = 130
130 ÷ 450 = 0.28888888888888886
0.28888888888888886 x 100 = 28.89%