56.96% is the change from 388 to 609
Calculation steps:
[( 609 - 388 ) ÷ 388] x 100 = 56.96%
Formula
Percentage change = [(609 - 388) / 388] x 100
Subtract the new number by the original number
609 - 388 = 221
221 ÷ 388 = 0.5695876288659794
0.5695876288659794 x 100 = 56.96%