-21.56% is the change from 923 to 724
Calculation steps:
[( 724 - 923 ) ÷ 923] x 100 = -21.56%
Formula
Percentage change = [(724 - 923) / 923] x 100
Subtract the new number by the original number
724 - 923 = -199
-199 ÷ 923 = -0.21560130010834236
-0.21560130010834236 x 100 = -21.56%