-1.32% is the change from 834 to 823
Calculation steps:
[( 823 - 834 ) ÷ 834] x 100 = -1.32%
Formula
Percentage change = [(823 - 834) / 834] x 100
Subtract the new number by the original number
823 - 834 = -11
-11 ÷ 834 = -0.013189448441247002
-0.013189448441247002 x 100 = -1.32%