-0.48% is the change from 827 to 823
Calculation steps:
[( 823 - 827 ) ÷ 827] x 100 = -0.48%
Formula
Percentage change = [(823 - 827) / 827] x 100
Subtract the new number by the original number
823 - 827 = -4
-4 ÷ 827 = -0.0048367593712212815
-0.0048367593712212815 x 100 = -0.48%