49.74% is the change from 388 to 581
Calculation steps:
[( 581 - 388 ) ÷ 388] x 100 = 49.74%
Formula
Percentage change = [(581 - 388) / 388] x 100
Subtract the new number by the original number
581 - 388 = 193
193 ÷ 388 = 0.49742268041237114
0.49742268041237114 x 100 = 49.74%