Suppose Microsoft chooses to produce 80 million copies of the software per year and sells copies of the software to retailers at $199 per copy. Now consider the problem of a retailer like Circuit City or Best Buy. Such retailers can sell as many copies of Vista they like at the prevailing market price of $200. If Circuit City sold 2 million copies of Vista, it would earn _________ in revenue. If it sold 4 million copies of Vista, it would earn _______ in revenue.