-1.08% is the change from 836 to 827
Calculation steps:
[( 827 - 836 ) ÷ 836] x 100 = -1.08%
Formula
Percentage change = [(827 - 836) / 836] x 100
Subtract the new number by the original number
827 - 836 = -9
-9 ÷ 836 = -0.01076555023923445
-0.01076555023923445 x 100 = -1.08%