48.54% is the change from 342 to 508
Calculation steps:
[( 508 - 342 ) ÷ 342] x 100 = 48.54%
Formula
Percentage change = [(508 - 342) / 342] x 100
Subtract the new number by the original number
508 - 342 = 166
166 ÷ 342 = 0.4853801169590643
0.4853801169590643 x 100 = 48.54%