Selected data from the September 27, 2014, and September 28, 2013, consolidated balance sheets and income statements for the years then ended for Apple Inc. follow. All amounts are reported in millions. 2014 2013 Net sales $ 32,079 $ 20,450 Cost of sales 22,334 15,352 Research and development expenses 1,054 777 Selling, general, and administrative expenses 3,736 2,873 Operating income ? ? Other income, net ? 529 Provision for income taxes 2,066 ? Net income $ 4,869 $ 3,566 Required:

a-1. Calculate the amount of Apples gross profit for each year. (Enter your answers in millions of dollars.)

Gross profit 2014=

Gross profit 2013+

a-2. Has gross profit as a percentage of sales changed significantly during the past year? Yes No

b-1. Calculate the amount of Apples operating income for each year. (Enter your answers in millions of dollars.)

Operating income for 2014

Operating income for 2013

b-2. Has operating income as a percentage of sales changed significantly during the past year?Yes No c.

After completing requirements a and b, calculate the other missing amounts for each year. (Enter your answers in millions of dollars. Negative amounts should be indicated by a minus sign.)

Operating income for 2014 2013

Other income, net 529

Income before taxes

Provision for income taxes (2066)

Net income 4869 3566