68.84% is the change from 398 to 672
Calculation steps:
[( 672 - 398 ) ÷ 398] x 100 = 68.84%
Formula
Percentage change = [(672 - 398) / 398] x 100
Subtract the new number by the original number
672 - 398 = 274
274 ÷ 398 = 0.6884422110552764
0.6884422110552764 x 100 = 68.84%