-0.22% is the change from 906 to 904
Calculation steps:
[( 904 - 906 ) ÷ 906] x 100 = -0.22%
Formula
Percentage change = [(904 - 906) / 906] x 100
Subtract the new number by the original number
904 - 906 = -2
-2 ÷ 906 = -0.002207505518763797
-0.002207505518763797 x 100 = -0.22%