6.15% is the change from 455 to 483
Calculation steps:
[( 483 - 455 ) ÷ 455] x 100 = 6.15%
Formula
Percentage change = [(483 - 455) / 455] x 100
Subtract the new number by the original number
483 - 455 = 28
28 ÷ 455 = 0.06153846153846154
0.06153846153846154 x 100 = 6.15%