57.56% is the change from 450 to 709
Calculation steps:
[( 709 - 450 ) ÷ 450] x 100 = 57.56%
Formula
Percentage change = [(709 - 450) / 450] x 100
Subtract the new number by the original number
709 - 450 = 259
259 ÷ 450 = 0.5755555555555556
0.5755555555555556 x 100 = 57.56%