Which of the following had the largest percentage change from 2014 to 2015: net sales; cost of sales; or selling, general, and administrative expenses? Show all computations.
Financial Summary Target 2015 Annual Report
FINANCIAL RESULTS: (in millions) 2015 2014
Sales $73,785 $72,618
Cost of Sales $51,997 $51,278
Selling, general and administrative expenses (SG&A) $14,665 $14,676