-17.86% is the change from 823 to 676
Calculation steps:
[( 676 - 823 ) ÷ 823] x 100 = -17.86%
Formula
Percentage change = [(676 - 823) / 823] x 100
Subtract the new number by the original number
676 - 823 = -147
-147 ÷ 823 = -0.17861482381530985
-0.17861482381530985 x 100 = -17.86%