-12.68% is the change from 923 to 806
Calculation steps:
[( 806 - 923 ) ÷ 923] x 100 = -12.68%
Formula
Percentage change = [(806 - 923) / 923] x 100
Subtract the new number by the original number
806 - 923 = -117
-117 ÷ 923 = -0.1267605633802817
-0.1267605633802817 x 100 = -12.68%