Suppose that Roots buys 5 million dollars in leather produced this year in Alberta and 1 million dollars in zippers produced last year in Toronto to make 9 million dollars worth of leather jackets in Montreal this year. They sell 7 million dollars worth of jackets this year. What is the total contribution to Canadian GDP this year contained in these jackets? (million means million dollars)
A) 5 million B) 6 million C) 7 million D) 8 million E) 9 million
Here the answer is D), which I don't quite understand. We calculate contribution to GDP through value added. In my opinion, the final sale, which is 7 million dollars, should be the sum. Could someone explain?