-95.08% is the change from 671 to 33
Calculation steps:
[( 33 - 671 ) ÷ 671] x 100 = -95.08%
Formula
Percentage change = [(33 - 671) / 671] x 100
Subtract the new number by the original number
33 - 671 = -638
-638 ÷ 671 = -0.9508196721311475
-0.9508196721311475 x 100 = -95.08%