Original sentence: For example, Wal-Mart is now the top grocery chain in the United States, with 14 percent of all grocery sales in the country, with nearly twice the sales of Kroger ($95 billion vs.Forbes magazine points out that if Wal-Mart were its own economy, it would rank 30th in the world, with a GDP right behind Saudi Arabia.Greeters at Sam's Club check all items at the door and mark receipts with a highlighter.It holds a 8.9 percent retail store market share; in other words, $8.90 out of every $100 spent in American stores is spent at Wal-Mart.They will stop some people as they are exiting the store and check for receipts of merchandise
Edited sentence: For example, Wal-Mart is now the #1 grocery chain in the United States, with 14 percent of all grocery sales in the country, with nearly twice the sales of Kroger ($95 billion vs.Forbes magazine points out that if Wal-Mart were its own economy, it would rank 30th in the world, with a GDP (consumption + investment + exports - imports) right behind Saudi Arabia's GDP.Greeters at Sam's Club check all items at the door and marks receipts with a highlighter.It holds a 8.9% retail store market share; in other words, $8.90 out of every $100 spent in American stores is spent at Wal-Mart.Other times teenagers are checked over senior citizens.Somtimes the checks are completely random.They often target customers who are carrying more valuable items, such as a DVD player, over people who are carrying a gallon of milk.They will stop people as they are exiting the store and check for receipts of merchandise