15.06% is the change from 478 to 550
Calculation steps:
[( 550 - 478 ) ÷ 478] x 100 = 15.06%
Formula
Percentage change = [(550 - 478) / 478] x 100
Subtract the new number by the original number
550 - 478 = 72
72 ÷ 478 = 0.1506276150627615
0.1506276150627615 x 100 = 15.06%