-99.64% is the change from 836 to 3
Calculation steps:
[( 3 - 836 ) ÷ 836] x 100 = -99.64%
Formula
Percentage change = [(3 - 836) / 836] x 100
Subtract the new number by the original number
3 - 836 = -833
-833 ÷ 836 = -0.9964114832535885
-0.9964114832535885 x 100 = -99.64%