1.56% is the change from 450 to 457
Calculation steps:
[( 457 - 450 ) ÷ 450] x 100 = 1.56%
Formula
Percentage change = [(457 - 450) / 450] x 100
Subtract the new number by the original number
457 - 450 = 7
7 ÷ 450 = 0.015555555555555555
0.015555555555555555 x 100 = 1.56%