27.44% is the change from 266 to 339
Calculation steps:
[( 339 - 266 ) ÷ 266] x 100 = 27.44%
Formula
Percentage change = [(339 - 266) / 266] x 100
Subtract the new number by the original number
339 - 266 = 73
73 ÷ 266 = 0.2744360902255639
0.2744360902255639 x 100 = 27.44%