30.09% is the change from 339 to 441
Calculation steps:
[( 441 - 339 ) ÷ 339] x 100 = 30.09%
Formula
Percentage change = [(441 - 339) / 339] x 100
Subtract the new number by the original number
441 - 339 = 102
102 ÷ 339 = 0.3008849557522124
0.3008849557522124 x 100 = 30.09%