-99.52% is the change from 836 to 4
Calculation steps:
[( 4 - 836 ) ÷ 836] x 100 = -99.52%
Formula
Percentage change = [(4 - 836) / 836] x 100
Subtract the new number by the original number
4 - 836 = -832
-832 ÷ 836 = -0.9952153110047847
-0.9952153110047847 x 100 = -99.52%