2.3% is the change from 478 to 489
Calculation steps:
[( 489 - 478 ) ÷ 478] x 100 = 2.3%
Formula
Percentage change = [(489 - 478) / 478] x 100
Subtract the new number by the original number
489 - 478 = 11
11 ÷ 478 = 0.02301255230125523
0.02301255230125523 x 100 = 2.3%