43%: http://www.businessinsider.com/amazon-accounts-for-43-of-us-online-retail-sales-2017-2 http://www.businessinsider.com/amazon-accounts-for-43-of-us-... Whi

43%: http://www.businessinsider.com/amazon-accounts-for-43-of-us-online-retail-sales-2017-2 http://www.businessinsider.com/amazon-accounts-for-43-of-us-... Which is a lot, but it would be hard to argue that consumers dont have choices, when the same goods are available in hundreds of other stores, both online and off.