The Economic Policy Institute, estimates that America. lost 2.7 million jobs as a result of the U.S.-China trade deficit between 2001 and 2011, 2.1 million of them in manufacturing.
https://www.usnews.com/news/articles/2012/08/24/report-ameri...
Current, Walmart has 2.3M employees to do 485B.
Assuming 124B(substarted 12B for cloud services) for amazon with 341k employees that means about 1.3M employees to do 485B.
wikipedia.org (my calculation for 1.3M jobs)