-85.93% is the change from 668 to 94
Calculation steps:
[( 94 - 668 ) ÷ 668] x 100 = -85.93%
Formula
Percentage change = [(94 - 668) / 668] x 100
Subtract the new number by the original number
94 - 668 = -574
-574 ÷ 668 = -0.8592814371257484
-0.8592814371257484 x 100 = -85.93%