-3.04% is the change from 921 to 893
Calculation steps:
[( 893 - 921 ) ÷ 921] x 100 = -3.04%
Formula
Percentage change = [(893 - 921) / 921] x 100
Subtract the new number by the original number
893 - 921 = -28
-28 ÷ 921 = -0.03040173724212812
-0.03040173724212812 x 100 = -3.04%