-95.42% is the change from 677 to 31
Calculation steps:
[( 31 - 677 ) ÷ 677] x 100 = -95.42%
Formula
Percentage change = [(31 - 677) / 677] x 100
Subtract the new number by the original number
31 - 677 = -646
-646 ÷ 677 = -0.9542097488921714
-0.9542097488921714 x 100 = -95.42%