28.78% is the change from 271 to 349
Calculation steps:
[( 349 - 271 ) ÷ 271] x 100 = 28.78%
Formula
Percentage change = [(349 - 271) / 271] x 100
Subtract the new number by the original number
349 - 271 = 78
78 ÷ 271 = 0.2878228782287823
0.2878228782287823 x 100 = 28.78%