81.96% is the change from 388 to 706
Calculation steps:
[( 706 - 388 ) ÷ 388] x 100 = 81.96%
Formula
Percentage change = [(706 - 388) / 388] x 100
Subtract the new number by the original number
706 - 388 = 318
318 ÷ 388 = 0.8195876288659794
0.8195876288659794 x 100 = 81.96%