28.9% is the change from 263 to 339
Calculation steps:
[( 339 - 263 ) ÷ 263] x 100 = 28.9%
Formula
Percentage change = [(339 - 263) / 263] x 100
Subtract the new number by the original number
339 - 263 = 76
76 ÷ 263 = 0.2889733840304182
0.2889733840304182 x 100 = 28.9%