17.46% is the change from 338 to 397
Calculation steps:
[( 397 - 338 ) ÷ 338] x 100 = 17.46%
Formula
Percentage change = [(397 - 338) / 338] x 100
Subtract the new number by the original number
397 - 338 = 59
59 ÷ 338 = 0.17455621301775148
0.17455621301775148 x 100 = 17.46%