17.52% is the change from 451 to 530
Calculation steps:
[( 530 - 451 ) ÷ 451] x 100 = 17.52%
Formula
Percentage change = [(530 - 451) / 451] x 100
Subtract the new number by the original number
530 - 451 = 79
79 ÷ 451 = 0.17516629711751663
0.17516629711751663 x 100 = 17.52%