12.53% is the change from 455 to 512
Calculation steps:
[( 512 - 455 ) ÷ 455] x 100 = 12.53%
Formula
Percentage change = [(512 - 455) / 455] x 100
Subtract the new number by the original number
512 - 455 = 57
57 ÷ 455 = 0.12527472527472527
0.12527472527472527 x 100 = 12.53%