-99.29% is the change from 843 to 6
Calculation steps:
[( 6 - 843 ) ÷ 843] x 100 = -99.29%
Formula
Percentage change = [(6 - 843) / 843] x 100
Subtract the new number by the original number
6 - 843 = -837
-837 ÷ 843 = -0.9928825622775801
-0.9928825622775801 x 100 = -99.29%