-78.44% is the change from 668 to 144
Calculation steps:
[( 144 - 668 ) ÷ 668] x 100 = -78.44%
Formula
Percentage change = [(144 - 668) / 668] x 100
Subtract the new number by the original number
144 - 668 = -524
-524 ÷ 668 = -0.7844311377245509
-0.7844311377245509 x 100 = -78.44%