Costco Wholesale Corp. (COST)

Costco Wholesale Corp., ROA, long-term trends, calculation

	ROA	=	100	×	Net income attributable to Costco1	÷	Total assets1
Aug 28, 2005		=	100	×		÷
Sep 3, 2006		=	100	×		÷
Sep 2, 2007		=	100	×		÷
Aug 31, 2008		=	100	×		÷
Aug 30, 2009		=	100	×		÷
Aug 29, 2010		=	100	×		÷
Aug 28, 2011		=	100	×		÷
Sep 2, 2012		=	100	×		÷
Sep 1, 2013		=	100	×		÷
Aug 31, 2014		=	100	×		÷
Aug 30, 2015		=	100	×		÷
Aug 28, 2016		=	100	×		÷
Sep 3, 2017		=	100	×		÷
Sep 2, 2018		=	100	×		÷

Based on: 10-K (filing date: 2005-11-10), 10-K (filing date: 2006-11-17), 10-K (filing date: 2007-10-25), 10-K (filing date: 2008-10-16), 10-K (filing date: 2009-10-16), 10-K (filing date: 2010-10-18), 10-K (filing date: 2011-10-14), 10-K (filing date: 2012-10-19), 10-K (filing date: 2013-10-16), 10-K (filing date: 2014-10-15), 10-K (filing date: 2015-10-14), 10-K (filing date: 2016-10-12), 10-K (filing date: 2017-10-18), 10-K (filing date: 2018-10-26).

¹ USD $ in millions

Costco Wholesale Corp., ROA, long-term trends, comparison to competitors

	Costco Wholesale Corp.	Amazon.com Inc.	eBay Inc.	Home Depot Inc.	Lowe’s Cos. Inc.	Netflix Inc.	Target Corp.	TJX Cos. Inc.	Walmart Inc.
Aug 28, 2005
Sep 3, 2006
Sep 2, 2007
Aug 31, 2008
Aug 30, 2009
Aug 29, 2010
Aug 28, 2011
Sep 2, 2012
Sep 1, 2013
Aug 31, 2014
Aug 30, 2015
Aug 28, 2016
Sep 3, 2017
Sep 2, 2018

Based on: 10-K (filing date: 2005-11-10), 10-K (filing date: 2006-11-17), 10-K (filing date: 2007-10-25), 10-K (filing date: 2008-10-16), 10-K (filing date: 2009-10-16), 10-K (filing date: 2010-10-18), 10-K (filing date: 2011-10-14), 10-K (filing date: 2012-10-19), 10-K (filing date: 2013-10-16), 10-K (filing date: 2014-10-15), 10-K (filing date: 2015-10-14), 10-K (filing date: 2016-10-12), 10-K (filing date: 2017-10-18), 10-K (filing date: 2018-10-26).

Costco Wholesale Corp., ROA, long-term trends, comparison to General Retailers sector

	Costco Wholesale Corp.	General Retailers
Aug 28, 2005
Sep 3, 2006
Sep 2, 2007
Aug 31, 2008
Aug 30, 2009
Aug 29, 2010
Aug 28, 2011
Sep 2, 2012
Sep 1, 2013
Aug 31, 2014
Aug 30, 2015
Aug 28, 2016
Sep 3, 2017
Sep 2, 2018

Based on: 10-K (filing date: 2005-11-10), 10-K (filing date: 2006-11-17), 10-K (filing date: 2007-10-25), 10-K (filing date: 2008-10-16), 10-K (filing date: 2009-10-16), 10-K (filing date: 2010-10-18), 10-K (filing date: 2011-10-14), 10-K (filing date: 2012-10-19), 10-K (filing date: 2013-10-16), 10-K (filing date: 2014-10-15), 10-K (filing date: 2015-10-14), 10-K (filing date: 2016-10-12), 10-K (filing date: 2017-10-18), 10-K (filing date: 2018-10-26).

Costco Wholesale Corp., ROA, long-term trends, comparison to Consumer Services industry

	Costco Wholesale Corp.	Consumer Services
Aug 28, 2005
Sep 3, 2006
Sep 2, 2007
Aug 31, 2008
Aug 30, 2009
Aug 29, 2010
Aug 28, 2011
Sep 2, 2012
Sep 1, 2013
Aug 31, 2014
Aug 30, 2015
Aug 28, 2016
Sep 3, 2017
Sep 2, 2018

Based on: 10-K (filing date: 2005-11-10), 10-K (filing date: 2006-11-17), 10-K (filing date: 2007-10-25), 10-K (filing date: 2008-10-16), 10-K (filing date: 2009-10-16), 10-K (filing date: 2010-10-18), 10-K (filing date: 2011-10-14), 10-K (filing date: 2012-10-19), 10-K (filing date: 2013-10-16), 10-K (filing date: 2014-10-15), 10-K (filing date: 2015-10-14), 10-K (filing date: 2016-10-12), 10-K (filing date: 2017-10-18), 10-K (filing date: 2018-10-26).