29.57% is the change from 470 to 609
Calculation steps:
[( 609 - 470 ) ÷ 470] x 100 = 29.57%
Formula
Percentage change = [(609 - 470) / 470] x 100
Subtract the new number by the original number
609 - 470 = 139
139 ÷ 470 = 0.2957446808510638
0.2957446808510638 x 100 = 29.57%