-85.59% is the change from 999 to 144
Calculation steps:
[( 144 - 999 ) ÷ 999] x 100 = -85.59%
Formula
Percentage change = [(144 - 999) / 999] x 100
Subtract the new number by the original number
144 - 999 = -855
-855 ÷ 999 = -0.8558558558558559
-0.8558558558558559 x 100 = -85.59%