81.49% is the change from 389 to 706
Calculation steps:
[( 706 - 389 ) ÷ 389] x 100 = 81.49%
Formula
Percentage change = [(706 - 389) / 389] x 100
Subtract the new number by the original number
706 - 389 = 317
317 ÷ 389 = 0.8149100257069408
0.8149100257069408 x 100 = 81.49%