-94.46% is the change from 668 to 37
Calculation steps:
[( 37 - 668 ) ÷ 668] x 100 = -94.46%
Formula
Percentage change = [(37 - 668) / 668] x 100
Subtract the new number by the original number
37 - 668 = -631
-631 ÷ 668 = -0.9446107784431138
-0.9446107784431138 x 100 = -94.46%