6.28% is the change from 478 to 508
Calculation steps:
[( 508 - 478 ) ÷ 478] x 100 = 6.28%
Formula
Percentage change = [(508 - 478) / 478] x 100
Subtract the new number by the original number
508 - 478 = 30
30 ÷ 478 = 0.06276150627615062
0.06276150627615062 x 100 = 6.28%