-79.59% is the change from 828 to 169
Calculation steps:
[( 169 - 828 ) ÷ 828] x 100 = -79.59%
Formula
Percentage change = [(169 - 828) / 828] x 100
Subtract the new number by the original number
169 - 828 = -659
-659 ÷ 828 = -0.7958937198067633
-0.7958937198067633 x 100 = -79.59%