-95.39% is the change from 672 to 31
Calculation steps:
[( 31 - 672 ) ÷ 672] x 100 = -95.39%
Formula
Percentage change = [(31 - 672) / 672] x 100
Subtract the new number by the original number
31 - 672 = -641
-641 ÷ 672 = -0.9538690476190477
-0.9538690476190477 x 100 = -95.39%