Suppose there is a simple one good economy that only produces spinning rims. In 2015, the economy was able to produce 1 million sets of spinning rims at an amazing price of $500 per set. In 2016, the economy was able to produce 1 million sets of spinning rims at a price of $1,000 per set. By what amount did real GDP increase between 2015 and 2016 in the simple one good economy