80.18% is the change from 338 to 609
Calculation steps:
[( 609 - 338 ) ÷ 338] x 100 = 80.18%
Formula
Percentage change = [(609 - 338) / 338] x 100
Subtract the new number by the original number
609 - 338 = 271
271 ÷ 338 = 0.8017751479289941
0.8017751479289941 x 100 = 80.18%