-39.58% is the change from 672 to 406
Calculation steps:
[( 406 - 672 ) ÷ 672] x 100 = -39.58%
Formula
Percentage change = [(406 - 672) / 672] x 100
Subtract the new number by the original number
406 - 672 = -266
-266 ÷ 672 = -0.3958333333333333
-0.3958333333333333 x 100 = -39.58%