38.43% is the change from 229 to 317
Calculation steps:
[( 317 - 229 ) ÷ 229] x 100 = 38.43%
Formula
Percentage change = [(317 - 229) / 229] x 100
Subtract the new number by the original number
317 - 229 = 88
88 ÷ 229 = 0.38427947598253276
0.38427947598253276 x 100 = 38.43%