48.59% is the change from 319 to 474
Calculation steps:
[( 474 - 319 ) ÷ 319] x 100 = 48.59%
Formula
Percentage change = [(474 - 319) / 319] x 100
Subtract the new number by the original number
474 - 319 = 155
155 ÷ 319 = 0.48589341692789967
0.48589341692789967 x 100 = 48.59%