18.02% is the change from 344 to 406
Calculation steps:
[( 406 - 344 ) ÷ 344] x 100 = 18.02%
Formula
Percentage change = [(406 - 344) / 344] x 100
Subtract the new number by the original number
406 - 344 = 62
62 ÷ 344 = 0.18023255813953487
0.18023255813953487 x 100 = 18.02%