-11.15% is the change from 924 to 821
Calculation steps:
[( 821 - 924 ) ÷ 924] x 100 = -11.15%
Formula
Percentage change = [(821 - 924) / 924] x 100
Subtract the new number by the original number
821 - 924 = -103
-103 ÷ 924 = -0.11147186147186147
-0.11147186147186147 x 100 = -11.15%