-40.77% is the change from 672 to 398
Calculation steps:
[( 398 - 672 ) ÷ 672] x 100 = -40.77%
Formula
Percentage change = [(398 - 672) / 672] x 100
Subtract the new number by the original number
398 - 672 = -274
-274 ÷ 672 = -0.40773809523809523
-0.40773809523809523 x 100 = -40.77%