-79.71% is the change from 828 to 168
Calculation steps:
[( 168 - 828 ) ÷ 828] x 100 = -79.71%
Formula
Percentage change = [(168 - 828) / 828] x 100
Subtract the new number by the original number
168 - 828 = -660
-660 ÷ 828 = -0.7971014492753623
-0.7971014492753623 x 100 = -79.71%