7.47% is the change from 455 to 489
Calculation steps:
[( 489 - 455 ) ÷ 455] x 100 = 7.47%
Formula
Percentage change = [(489 - 455) / 455] x 100
Subtract the new number by the original number
489 - 455 = 34
34 ÷ 455 = 0.07472527472527472
0.07472527472527472 x 100 = 7.47%