-2.83% is the change from 847 to 823
Calculation steps:
[( 823 - 847 ) ÷ 847] x 100 = -2.83%
Formula
Percentage change = [(823 - 847) / 847] x 100
Subtract the new number by the original number
823 - 847 = -24
-24 ÷ 847 = -0.02833530106257379
-0.02833530106257379 x 100 = -2.83%