12.39% is the change from 347 to 390
Calculation steps:
[( 390 - 347 ) ÷ 347] x 100 = 12.39%
Formula
Percentage change = [(390 - 347) / 347] x 100
Subtract the new number by the original number
390 - 347 = 43
43 ÷ 347 = 0.1239193083573487
0.1239193083573487 x 100 = 12.39%