-4.61% is the change from 672 to 641
Calculation steps:
[( 641 - 672 ) ÷ 672] x 100 = -4.61%
Formula
Percentage change = [(641 - 672) / 672] x 100
Subtract the new number by the original number
641 - 672 = -31
-31 ÷ 672 = -0.046130952380952384
-0.046130952380952384 x 100 = -4.61%