11.43% is the change from 455 to 507
Calculation steps:
[( 507 - 455 ) ÷ 455] x 100 = 11.43%
Formula
Percentage change = [(507 - 455) / 455] x 100
Subtract the new number by the original number
507 - 455 = 52
52 ÷ 455 = 0.11428571428571428
0.11428571428571428 x 100 = 11.43%