57.24% is the change from 304 to 478
Calculation steps:
[( 478 - 304 ) ÷ 304] x 100 = 57.24%
Formula
Percentage change = [(478 - 304) / 304] x 100
Subtract the new number by the original number
478 - 304 = 174
174 ÷ 304 = 0.5723684210526315
0.5723684210526315 x 100 = 57.24%