-99.52% is the change from 835 to 4
Calculation steps:
[( 4 - 835 ) ÷ 835] x 100 = -99.52%
Formula
Percentage change = [(4 - 835) / 835] x 100
Subtract the new number by the original number
4 - 835 = -831
-831 ÷ 835 = -0.9952095808383233
-0.9952095808383233 x 100 = -99.52%