38.37% is the change from 172 to 238
Calculation steps:
[( 238 - 172 ) ÷ 172] x 100 = 38.37%
Formula
Percentage change = [(238 - 172) / 172] x 100
Subtract the new number by the original number
238 - 172 = 66
66 ÷ 172 = 0.38372093023255816
0.38372093023255816 x 100 = 38.37%