-99.28% is the change from 828 to 6
Calculation steps:
[( 6 - 828 ) ÷ 828] x 100 = -99.28%
Formula
Percentage change = [(6 - 828) / 828] x 100
Subtract the new number by the original number
6 - 828 = -822
-822 ÷ 828 = -0.9927536231884058
-0.9927536231884058 x 100 = -99.28%