Is there a way of converting the table and form which we created an expert level 8 as it would show the cost to me per item per line in the product table we set up a way of giving us a line total what I would like to do is do the same sort of thing as that lesson except pull the data off a table with my pricing as I am able to work out how much money to put aside for replacement materials what I was thinking was making a table called my costs and crating aquarium like we did an expert level 8 or nine when we crated the invoice to give me the total cost of my materials as I am able to put that amount aside for replacement materials I can easily edit the table if my prices change to be able to up to date pricing or is there a better way to go about this and expert level 7 I know we set up junction tables because of the type of business I run one category may have 50 items in it my categories are e.g. video, audio which lists each type of disk this case etc.