78.39% is the change from 398 to 710
Calculation steps:
[( 710 - 398 ) ÷ 398] x 100 = 78.39%
Formula
Percentage change = [(710 - 398) / 398] x 100
Subtract the new number by the original number
710 - 398 = 312
312 ÷ 398 = 0.7839195979899497
0.7839195979899497 x 100 = 78.39%