30.6% is the change from 317 to 414
Calculation steps:
[( 414 - 317 ) ÷ 317] x 100 = 30.6%
Formula
Percentage change = [(414 - 317) / 317] x 100
Subtract the new number by the original number
414 - 317 = 97
97 ÷ 317 = 0.305993690851735
0.305993690851735 x 100 = 30.6%