53.56% is the change from 450 to 691
Calculation steps:
[( 691 - 450 ) ÷ 450] x 100 = 53.56%
Formula
Percentage change = [(691 - 450) / 450] x 100
Subtract the new number by the original number
691 - 450 = 241
241 ÷ 450 = 0.5355555555555556
0.5355555555555556 x 100 = 53.56%