Hi. I have an assignment:
Immigrants make up 11% of a country's population while increasing its GDP by 0,9%.
40% of the GDP comes from tax revenue.
Is the country gaining or losing revenue by having an immigrant work force?
My approach is taking, say $1000 and then stating that $400 comes from tax revenue. $44 should come from immigrants and $356 from natives (11% and 89%). Then take $1000*0,9% to conclude that the immigrants, while only needing to contribute $44, are actually contributing $90.
Are my calculations correct? This is a recreational assignment, so any tips and comments are appreciated.