Suppose the country that produces rye trades 14 million bushels of rye to the other country in exchange for 42 million pairs of jeans.million pounds of sugar, as indicated by the grey stars marked with the letter A.

When the two countries did not specialize, the total production of rye was 18 million bushels per month, and the total production of jeans was 52 million pairs per month. Because of specialization, the total production of rye has increased bymillionbushels per month, and the total production of jeans has increased bymillionpairs per month.

How do I calculate gains from trade?