-95.4% is the change from 674 to 31
Calculation steps:
[( 31 - 674 ) ÷ 674] x 100 = -95.4%
Formula
Percentage change = [(31 - 674) / 674] x 100
Subtract the new number by the original number
31 - 674 = -643
-643 ÷ 674 = -0.9540059347181009
-0.9540059347181009 x 100 = -95.4%