80.71% is the change from 337 to 609
Calculation steps:
[( 609 - 337 ) ÷ 337] x 100 = 80.71%
Formula
Percentage change = [(609 - 337) / 337] x 100
Subtract the new number by the original number
609 - 337 = 272
272 ÷ 337 = 0.8071216617210683
0.8071216617210683 x 100 = 80.71%