-80.43% is the change from 828 to 162
Calculation steps:
[( 162 - 828 ) ÷ 828] x 100 = -80.43%
Formula
Percentage change = [(162 - 828) / 828] x 100
Subtract the new number by the original number
162 - 828 = -666
-666 ÷ 828 = -0.8043478260869565
-0.8043478260869565 x 100 = -80.43%