34.7% is the change from 317 to 427
Calculation steps:
[( 427 - 317 ) ÷ 317] x 100 = 34.7%
Formula
Percentage change = [(427 - 317) / 317] x 100
Subtract the new number by the original number
427 - 317 = 110
110 ÷ 317 = 0.3470031545741325
0.3470031545741325 x 100 = 34.7%