-82.61% is the change from 828 to 144
Calculation steps:
[( 144 - 828 ) ÷ 828] x 100 = -82.61%
Formula
Percentage change = [(144 - 828) / 828] x 100
Subtract the new number by the original number
144 - 828 = -684
-684 ÷ 828 = -0.8260869565217391
-0.8260869565217391 x 100 = -82.61%