18.69% is the change from 289 to 343
Calculation steps:
[( 343 - 289 ) ÷ 289] x 100 = 18.69%
Formula
Percentage change = [(343 - 289) / 289] x 100
Subtract the new number by the original number
343 - 289 = 54
54 ÷ 289 = 0.18685121107266436
0.18685121107266436 x 100 = 18.69%