-99.28% is the change from 837 to 6
Calculation steps:
[( 6 - 837 ) ÷ 837] x 100 = -99.28%
Formula
Percentage change = [(6 - 837) / 837] x 100
Subtract the new number by the original number
6 - 837 = -831
-831 ÷ 837 = -0.992831541218638
-0.992831541218638 x 100 = -99.28%