11.28% is the change from 390 to 434
Calculation steps:
[( 434 - 390 ) ÷ 390] x 100 = 11.28%
Formula
Percentage change = [(434 - 390) / 390] x 100
Subtract the new number by the original number
434 - 390 = 44
44 ÷ 390 = 0.11282051282051282
0.11282051282051282 x 100 = 11.28%