Hi, I need help answering this question: Please use the 10-K report (Link below) Company is COSTCO

https://www.sec.gov/Archives/edgar/data/909832/000090983215000014/cost10k83015.htm#s235AE5F5222075E6B98AD3EF04E3B2D0

SEC 10-K Project: Statement of Stockholders' Equity

Using vertical analysis (show your calculations), present values for this year and last year:

1. 1) gross profit margin
2. 2) net profit margin (use the last "net income" line on the statement)
3. 3) Comment on changes: Are sales increasingly profitable? How is gross profit and net income changing, as a dollar value?