8.79% is the change from 478 to 520
Calculation steps:
[( 520 - 478 ) ÷ 478] x 100 = 8.79%
Formula
Percentage change = [(520 - 478) / 478] x 100
Subtract the new number by the original number
520 - 478 = 42
42 ÷ 478 = 0.08786610878661087
0.08786610878661087 x 100 = 8.79%