JavaScripts to determine Sale Profitability

Online Sales Order entry process allows items to be selected from an inventory master list. Each item has a selling price=p and a purchase price=c. Varying quantities=q are ordered for each item. Once the ordering is complete a shipping estimate=s is already calculated. We need JavaScript to compute the gross profit=g : g=(p-c)*q-s per item Total gross profit G: G=sum(g) and the percentage margin=M: M=G/sum(p*q) I can make a test account available to the coder to work on their own. They can develop their code there. Once I approve it, I need the code to be implemented on a live account. For this the coder and I will have to be online at the same time via WebEx and the coder can implement it on the live account. So coder will need a decent connection to the internet for this exercise. I am available for implementation during the hours 5AM GMT to 5PM GMT. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Must work on IE 6+ and Mozilla Firefox 1.5+. on MS OS XP and OS 2003