-0.48% is the change from 828 to 824
Calculation steps:
[( 824 - 828 ) ÷ 828] x 100 = -0.48%
Formula
Percentage change = [(824 - 828) / 828] x 100
Subtract the new number by the original number
824 - 828 = -4
-4 ÷ 828 = -0.004830917874396135
-0.004830917874396135 x 100 = -0.48%