-96.72% is the change from 671 to 22
Calculation steps:
[( 22 - 671 ) ÷ 671] x 100 = -96.72%
Formula
Percentage change = [(22 - 671) / 671] x 100
Subtract the new number by the original number
22 - 671 = -649
-649 ÷ 671 = -0.9672131147540983
-0.9672131147540983 x 100 = -96.72%