-0.24% is the change from 828 to 826
Calculation steps:
[( 826 - 828 ) ÷ 828] x 100 = -0.24%
Formula
Percentage change = [(826 - 828) / 828] x 100
Subtract the new number by the original number
826 - 828 = -2
-2 ÷ 828 = -0.0024154589371980675
-0.0024154589371980675 x 100 = -0.24%