compare and contrast the the companies ratios, focusing on the Dupont Analysis ratios for all three companies

why is the NPM ratio for Walmart bigger than the the NPM for Amazon?

Are the differences stable or are they changing over time

Is Sales growing faster than Assets

Are assets growing at all? Are there one particular type of asset that is growing faster than others

FINANCIAL STATEMENTS			AMZN						HD						WMT
Income Statement	2016-12	2015-12	2014-12	2013-12	2012-12		2017-01	2016-01	2015-01	2014-01	2013-01		2017-01	2016-01	2015-01	2014-01	2013-01
Revenue ($ million)	135,987	107,006	88,988	74,452	61,093		94,595	88,519	83,176	78,812	74,754		485,873	482,130	485,651	476,294	469,162
Cost of Goods Sold	88,265	71,651	62,752	54,181	45,971		62,282	58,254	54,222	51,422	48,912		361,256	360,984	365,086	358,069	352,488
Gross Profit	47,722	35,355	26,236	20,271	15,122		32,313	30,265	28,954	27,390	25,842		124,617	121,146	120,565	118,225	116,674
SG&A Expense	35,420	26,841	21,312	16,273	12,287		16,913	16,628	16,699	16,467	16,392		91,773	87,587	84,245	82,483	80,372
Depreciation & Amort	8,116	6,281	4,746	3,253	2,159		1,973	1,863	1,786	1,757	1,684		10,080	9,454	9,173	8,870	8,501
Operating Income	4,186	2,233	178	745	676		13,427	11,774	10,469	9,166	7,766		22,764	24,105	27,147	26,872	27,801
Nonoperating Inc (Expn)	190	-206	-79	-98	-40		972	919	830	711	632		100	81	113	119	187
Interest Expense	484	459	210	141	92		36	166	337	12	87		2,367	2,548	2,461	2,335	2,251
Income Before Taxes	3,892	1,568	-111	506	544		12,491	11,021	9,976	8,467	7,221		20,497	21,638	24,799	24,656	25,737
Income Taxes	1,521	972	130	232	583		4,534	4,012	3,631	3,082	2,686		6,204	6,558	7,985	8,105	7,981
Net Income After Taxes	2,371	596	-241	274	-39		7,957	7,009	6,345	5,385	4,535		14,293	15,080	16,814	16,551	17,756
Abbreviated Cash Flow Statement	2016-12	2015-12	2014-12	2013-12	2012-12		2017-01	2016-01	2015-01	2014-01	2013-01		2017-01	2016-01	2015-01	2014-01	2013-01
Net income	2,371	596	-241	274	-39		7,957	7,009	6,345	5,385	4,535		14,293	15,080	17,099	16,695	17,756
Depreciation & amortization	8,116	6,281	4,746	3,253	2,159		1,973	1,863	1,786	1,757	1,684		10,080	9,454	9,173	8,870	8,501
Other Noncash expenses	2,975	2,119	1,497	1,134	833		267	100	-98	228	315		206	1,410	785	938	527
Aggregate Changes in Net Working Capital	2,981	2,924	840	814	1,227		-414	401	209	258	441		6,951	1,445	1,507	-3,246	-1,193
Cash Flow from Operating Activities	16,443	11,920	6,842	5,475	4,180		9,783	9,373	8,242	7,628	6,975		31,530	27,389	28,564	23,257	25,591
Investments in prop, plant, and equip	-6,737	-4,589	-4,893	-3,444	-3,785		-1,621	-1,503	-1,442	-1,389	-1,312		-10,163	-10,842	-11,604	-12,388	-12,366
Other investing activities	-3,139	-1,861	-172	-832	190		38	-1,479	171	-118	-120		-3,824	167	479	90	-245
Cash Flow from Investing Activities	-9,876	-6,450	-5,065	-4,276	-3,595		-1,583	-2,982	-1,271	-1,507	-1,432		-13,987	-10,675	-11,125	-12,298	-12,611
Net debt issuance (repayment)	-3,740	-3,882	4,426	-617	2,790		2,274	4,012	2,232	3,933	-32		-3,591	-3,158	-5,018	3,015	1,487
Common stock repurchased	0	0	0	0	-960		-6,662	-6,772	-6,748	-8,305	-3,200		-8,298	-4,112	-1,015	-6,683	-7,600
Dividend paid	0	0	0	0	0		-3,404	-3,031	-2,530	-2,243	-1,743		-6,216	-6,294	-6,185	-6,139	-5,361
Other financing activities	829	119	6	78	429		-78	4	-25	-37	-59		-824	-2,558	-2,853	-1,210	-498
Cash Flow from Financing Activities	-2,911	-3,763	4,432	-539	2,259		-7,870	-5,787	-7,071	-6,652	-5,034		-18,929	-16,122	-15,071	-11,017	-11,972
Free Cash Flow	9,706	7,331	1,949	2,031	395		8,162	7,870	6,800	6,239	5,663		21,367	16,547	16,960	10,869	13,225