I have to come up with audit program for CITIgroup and I have no idea where to even start. I chose audit program for receivables accounts.

Can someone assist? This is a team assignment. This is the link to the financial info.

http://www.citigroup.com/citi/investor/data/k15c.pdf?ieNocache=642

Consider and discuss the specific risks and nature of the company you will be auditing.

Create comprehensive audit programs for the cash, financial instruments, sale, and receivables accounts and cycles.

Submit a 1,400- to 1,750-word document that includes:

• Audit steps for tests of controls, balances, transactions, analytical procedures, etc. as well as other considerations such as sample size and sample methodology.
• A brief summary page should be included in this document, 350 to 700 words for each of the audit programs. Include in this summary specific financial information gleaned from the current Form 10-K used to perform an analysis of work program steps. For example, if the team noted significant swings in the Receivables balance year-over-year, identify these swings and how you address them in your work program (this is in essence an audit procedure - analytical review).