4.41% is the change from 340 to 355
Calculation steps:
[( 355 - 340 ) ÷ 340] x 100 = 4.41%
Formula
Percentage change = [(355 - 340) / 340] x 100
Subtract the new number by the original number
355 - 340 = 15
15 ÷ 340 = 0.04411764705882353
0.04411764705882353 x 100 = 4.41%