57.2% is the change from 257 to 404
Calculation steps:
[( 404 - 257 ) ÷ 257] x 100 = 57.2%
Formula
Percentage change = [(404 - 257) / 257] x 100
Subtract the new number by the original number
404 - 257 = 147
147 ÷ 257 = 0.5719844357976653
0.5719844357976653 x 100 = 57.2%