0.4% is the change from 990 to 994
Calculation steps:
[( 994 - 990 ) ÷ 990] x 100 = 0.4%
Formula
Percentage change = [(994 - 990) / 990] x 100
Subtract the new number by the original number
994 - 990 = 4
4 ÷ 990 = 0.00404040404040404
0.00404040404040404 x 100 = 0.4%