30.27% is the change from 337 to 439
Calculation steps:
[( 439 - 337 ) ÷ 337] x 100 = 30.27%
Formula
Percentage change = [(439 - 337) / 337] x 100
Subtract the new number by the original number
439 - 337 = 102
102 ÷ 337 = 0.3026706231454006
0.3026706231454006 x 100 = 30.27%