When it comes to shades, having to add my cost and sell price just adds more data entry to a proposal. It would be awesome if I could add the price of a shade, and then have Portal automatically adjust my supplier cost for that item based on a percentage. So under the generic shade item, when it comes to adding a supplier cost, we could have an option that shows "_____% of Sell Price". This would make writing large shade proposals quicker - just add the sell price and Portal automatically adjusts the supplier cost for each shade.