2.32% is the change from 388 to 397
Calculation steps:
[( 397 - 388 ) ÷ 388] x 100 = 2.32%
Formula
Percentage change = [(397 - 388) / 388] x 100
Subtract the new number by the original number
397 - 388 = 9
9 ÷ 388 = 0.023195876288659795
0.023195876288659795 x 100 = 2.32%