81.07% is the change from 391 to 708
Calculation steps:
[( 708 - 391 ) ÷ 391] x 100 = 81.07%
Formula
Percentage change = [(708 - 391) / 391] x 100
Subtract the new number by the original number
708 - 391 = 317
317 ÷ 391 = 0.8107416879795396
0.8107416879795396 x 100 = 81.07%