31.1% is the change from 418 to 548
Calculation steps:
[( 548 - 418 ) ÷ 418] x 100 = 31.1%
Formula
Percentage change = [(548 - 418) / 418] x 100
Subtract the new number by the original number
548 - 418 = 130
130 ÷ 418 = 0.31100478468899523
0.31100478468899523 x 100 = 31.1%