11.21% is the change from 455 to 506
Calculation steps:
[( 506 - 455 ) ÷ 455] x 100 = 11.21%
Formula
Percentage change = [(506 - 455) / 455] x 100
Subtract the new number by the original number
506 - 455 = 51
51 ÷ 455 = 0.11208791208791209
0.11208791208791209 x 100 = 11.21%