70.6% is the change from 398 to 679
Calculation steps:
[( 679 - 398 ) ÷ 398] x 100 = 70.6%
Formula
Percentage change = [(679 - 398) / 398] x 100
Subtract the new number by the original number
679 - 398 = 281
281 ÷ 398 = 0.7060301507537688
0.7060301507537688 x 100 = 70.6%