-12.15% is the change from 823 to 723
Calculation steps:
[( 723 - 823 ) ÷ 823] x 100 = -12.15%
Formula
Percentage change = [(723 - 823) / 823] x 100
Subtract the new number by the original number
723 - 823 = -100
-100 ÷ 823 = -0.12150668286755771
-0.12150668286755771 x 100 = -12.15%