33.14% is the change from 338 to 450
Calculation steps:
[( 450 - 338 ) ÷ 338] x 100 = 33.14%
Formula
Percentage change = [(450 - 338) / 338] x 100
Subtract the new number by the original number
450 - 338 = 112
112 ÷ 338 = 0.33136094674556216
0.33136094674556216 x 100 = 33.14%