78.14% is the change from 398 to 709
Calculation steps:
[( 709 - 398 ) ÷ 398] x 100 = 78.14%
Formula
Percentage change = [(709 - 398) / 398] x 100
Subtract the new number by the original number
709 - 398 = 311
311 ÷ 398 = 0.7814070351758794
0.7814070351758794 x 100 = 78.14%