To calculate the net foreign investment of Amagre, one has to identify the amount of money that foreigners have invested in Amagre and then subtract the amount of money that Amagre has invested in other countries. Based on the wording, it looks like Amagre has received 75 billion G in foreign investment and has earned 25 billion G in their investments abroad. Subtract 25 billion G from 75 billion G, and the answer should be 50 billion G.

To compute net exports, you take the value of Amagre exports and subtract the value of Amagre imports. According to the wording of the data, the value of Amagre exports is 50 billion G, while the value of its imports is 150 billion G, so the answer should be -100.

To determine the GDP (gross domestic product) of Amagre, one will have to add together its net exports, consumption, government spending, and government investment. To get the answer, add 350 billion G, 100 billion G, 100 billion G, 200 billion G, 200 billion G, plus -100. The calculation should result in a GDP of 850 billion G.

To figure out the GNP (gross national product), take the GDP, add the income from foreign countries, then subtract the money that Amagre sends to other countries.