I need help with my BUS/212 Economic Impacts on US based businesses class week 3 assignments. I chose General Motors Cadillac brand as my business

I need help with my BUS/212 Economic Impacts on US based businesses class week 3 assignments. I chose General Motors Cadillac brand as my business and I need to make a chart using Excel® as a visual representation of the supply and demand curve for my business. I don't know how to figure this out, so I would like the document in excel so I can see how it is formatted and formulas used.