Hello I need help with calculating the excell portion for the bullet points. I dont understand how to calculate each of the following. Also I selected GM for Automotive. Please help.

[Select a Fortune 500 Company from one of the following industries companies: Pharmaceutical Pfizer Energy ExxonMobile Retail WalMart Automotive GM Computer Hardware HP Review the balance sheet and income statement in the companys 2015 Annual Report. Calculate the following ratios using Microsofte Excel Current Ratio Quick Ratio Debt Equity Ratio Inventory Turnover Ratio Receivables Turnover Ratio Total Assets Turnover Ratio Profit Margin (Net Margin) Ratio Return on Assets Ratio]

This is the annual Report for 2015 GM Motors

https://www.sec.gov/Archives/edgar/data/1467858/000146785816000255/gm201510k.htm