Product Development Notebook
These are the worksheets discussed in, "eBay Rescue Profit Maker." If you do not have a PDF reader, go to Adobe.com and download their free Adobe Acrobat Reader.
Product Development Notebook.pdf
Adobe Acrobat document [349.6 KB]

eBay Profit Margin Calculator
This is the Excel spreadsheet discussed in Kevin's book "eBay Rescue Problem Solver."
eBay Profit Margin Calculator v3.xls
Microsoft Excel sheet [65.5 KB]