33.19% is the change from 238 to 317
Calculation steps:
[( 317 - 238 ) ÷ 238] x 100 = 33.19%
Formula
Percentage change = [(317 - 238) / 238] x 100
Subtract the new number by the original number
317 - 238 = 79
79 ÷ 238 = 0.3319327731092437
0.3319327731092437 x 100 = 33.19%