WARNING: This was created 2010, it may be significantly out of date now. Use at your own risk.
I have created a simple spreadsheet which shows you in clean, simple figures the potential for generating income through Amway. It is only from my (somewhat basic) understanding of the rebate structure around 2010 (it may be quite out of date now).
(Sample screenshot only. Download Excel file below.)
Update: I found another similar spreadsheet developed by someone else. Download it here.