Forecasting Sales): Use actual sales (revenue) data from previous 4 years to estimate sales using the linear trend function.

Amazon.com Inc.
Consolidated Income Statement
US$ in millions
12 months ended	Dec 31, 2019	Dec 31, 2018	Dec 31, 2017	Dec 31, 2016	Dec 31, 2015
Net product sales	160,408	141,915	118,573	94,665	79,268
Net services sales	120,114	90,972	59,293	41,322	27,738
Net sales	280,522	232,887	177,866	135,987	107,006
Cost of sales	(165,536)	(139,156)	(111,934)	(88,265)	(71,651)
Gross profit	114,986	93,731	65,932	47,722	35,355
Fulfillment	(40,232)	(34,027)	(25,249)	(17,619)	(13,410)
Technology and content	(35,931)	(28,837)	(22,620)	(16,085)	(12,540)
Marketing	(18,878)	(13,814)	(10,069)	(7,233)	(5,254)
General and administrative	(5,203)	(4,336)	(3,674)	(2,432)	(1,747)
Other operating expense, net	(201)	(296)	(214)	(167)	(171)
Operating income	14,541	12,421	4,106	4,186	2,233
Interest income	832	440	202	100	50
Interest expense	(1,600)	(1,417)	(848)	(484)	(459)
Other income (expense), net	203	(183)	346	90	(256)
Non-operating income (expense)	(565)	(1,160)	(300)	(294)	(665)
Income before income taxes	13,976	11,261	3,806	3,892	1,568
Provision for income taxes	(2,374)	(1,197)	(769)	(1,425)	(950)
Equity-method investment activity, net of tax	(14)	9	(4)	(96)	(22)
Net income	11,588	10,073	3,033	2,371	596

1 Amazon.com Inc. 2 Consolidated Income Statement 4 US$ in millions 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Net product sales Net services sales Net sales Cost of sales G ross profit Fulfillment Technology and content Marketing General and administrative Other operating expense, net Operating income Interest income Interest expense Other income (expense), net Non-operating income (expense) Income before income taxes Provision for income taxes Equity-method investment activity, net of tax Net income 12 months ended Dec 31, 2019 160,408 120,114 280,522 (165,536) 114,986 (40,232) (35,931) (18,878) (5,203) (201) 14,541 832 (1,600) 203 (565) 13,976 (2,374) Dec 31, 2018 141015 141,915 90,972 232,887 (139,156) 93,731 (34,027) (28,837) (13,814) (4,336) (296) 12,421 440 (1,417) (183) (1,160) 11,261 (1,197) Dec 31, 2017 118,573 59,293 177,866 (111,934) 65,932 (25,249) (22,620) (10,069) (3,674) (214) 4,106 202 (848) 346 (300) 3,806 (769) Dec 31, 2016 94,665 41,322 135,987 (88,265) 47,722 (17,619) (16,085) (7,233) (2,432) (167) 4,186 100 (484) Dec 31, 2015 79,268 27,738 107,006 (71,651) 35,355 (13,410) (12,540) (5,254) (1,747) (171) 2,233 50 90 (459) (256) (665) 1,568 (950) 21 (294) 3,892 (1,425) (96) 2,371 22 23 24 (14) (22) 11,588 10,073 3,033 596 Amazon com Inc