61.56% is the change from 450 to 727
Calculation steps:
[( 727 - 450 ) ÷ 450] x 100 = 61.56%
Formula
Percentage change = [(727 - 450) / 450] x 100
Subtract the new number by the original number
727 - 450 = 277
277 ÷ 450 = 0.6155555555555555
0.6155555555555555 x 100 = 61.56%