-1.08% is the change from 837 to 828
Calculation steps:
[( 828 - 837 ) ÷ 837] x 100 = -1.08%
Formula
Percentage change = [(828 - 837) / 837] x 100
Subtract the new number by the original number
828 - 837 = -9
-9 ÷ 837 = -0.010752688172043012
-0.010752688172043012 x 100 = -1.08%