-0.36% is the change from 826 to 823
Calculation steps:
[( 823 - 826 ) ÷ 826] x 100 = -0.36%
Formula
Percentage change = [(823 - 826) / 826] x 100
Subtract the new number by the original number
823 - 826 = -3
-3 ÷ 826 = -0.0036319612590799033
-0.0036319612590799033 x 100 = -0.36%