29.02% is the change from 317 to 409
Calculation steps:
[( 409 - 317 ) ÷ 317] x 100 = 29.02%
Formula
Percentage change = [(409 - 317) / 317] x 100
Subtract the new number by the original number
409 - 317 = 92
92 ÷ 317 = 0.2902208201892745
0.2902208201892745 x 100 = 29.02%