-76.69% is the change from 828 to 193
Calculation steps:
[( 193 - 828 ) ÷ 828] x 100 = -76.69%
Formula
Percentage change = [(193 - 828) / 828] x 100
Subtract the new number by the original number
193 - 828 = -635
-635 ÷ 828 = -0.7669082125603864
-0.7669082125603864 x 100 = -76.69%