-89.27% is the change from 671 to 72
Calculation steps:
[( 72 - 671 ) ÷ 671] x 100 = -89.27%
Formula
Percentage change = [(72 - 671) / 671] x 100
Subtract the new number by the original number
72 - 671 = -599
-599 ÷ 671 = -0.8926974664679582
-0.8926974664679582 x 100 = -89.27%