3.41% is the change from 440 to 455
Calculation steps:
[( 455 - 440 ) ÷ 440] x 100 = 3.41%
Formula
Percentage change = [(455 - 440) / 440] x 100
Subtract the new number by the original number
455 - 440 = 15
15 ÷ 440 = 0.03409090909090909
0.03409090909090909 x 100 = 3.41%