-82.78% is the change from 836 to 144
Calculation steps:
[( 144 - 836 ) ÷ 836] x 100 = -82.78%
Formula
Percentage change = [(144 - 836) / 836] x 100
Subtract the new number by the original number
144 - 836 = -692
-692 ÷ 836 = -0.8277511961722488
-0.8277511961722488 x 100 = -82.78%