-94.49% is the change from 671 to 37
Calculation steps:
[( 37 - 671 ) ÷ 671] x 100 = -94.49%
Formula
Percentage change = [(37 - 671) / 671] x 100
Subtract the new number by the original number
37 - 671 = -634
-634 ÷ 671 = -0.9448584202682563
-0.9448584202682563 x 100 = -94.49%