-83.53% is the change from 668 to 110
Calculation steps:
[( 110 - 668 ) ÷ 668] x 100 = -83.53%
Formula
Percentage change = [(110 - 668) / 668] x 100
Subtract the new number by the original number
110 - 668 = -558
-558 ÷ 668 = -0.8353293413173652
-0.8353293413173652 x 100 = -83.53%