-83.08% is the change from 851 to 144
Calculation steps:
[( 144 - 851 ) ÷ 851] x 100 = -83.08%
Formula
Percentage change = [(144 - 851) / 851] x 100
Subtract the new number by the original number
144 - 851 = -707
-707 ÷ 851 = -0.8307873090481787
-0.8307873090481787 x 100 = -83.08%