-82.2% is the change from 809 to 144
Calculation steps:
[( 144 - 809 ) ÷ 809] x 100 = -82.2%
Formula
Percentage change = [(144 - 809) / 809] x 100
Subtract the new number by the original number
144 - 809 = -665
-665 ÷ 809 = -0.8220024721878862
-0.8220024721878862 x 100 = -82.2%