-9.6% is the change from 823 to 744
Calculation steps:
[( 744 - 823 ) ÷ 823] x 100 = -9.6%
Formula
Percentage change = [(744 - 823) / 823] x 100
Subtract the new number by the original number
744 - 823 = -79
-79 ÷ 823 = -0.0959902794653706
-0.0959902794653706 x 100 = -9.6%