-1.85% is the change from 921 to 904
Calculation steps:
[( 904 - 921 ) ÷ 921] x 100 = -1.85%
Formula
Percentage change = [(904 - 921) / 921] x 100
Subtract the new number by the original number
904 - 921 = -17
-17 ÷ 921 = -0.018458197611292075
-0.018458197611292075 x 100 = -1.85%