26.25% is the change from 339 to 428
Calculation steps:
[( 428 - 339 ) ÷ 339] x 100 = 26.25%
Formula
Percentage change = [(428 - 339) / 339] x 100
Subtract the new number by the original number
428 - 339 = 89
89 ÷ 339 = 0.26253687315634217
0.26253687315634217 x 100 = 26.25%