Demer Bookslore is the bockulore on campun for students and tacully The bookstore shows the following salen profoctions in units by ocarter for the upcoming year (Cick trie icon to view the average price inflomation.) Requilrement Prepare a sales bodget for the upcoming yeur by quarter for the Deover Bockiven, whe swes colegorited by the fou product groupings (books, school supples, appared. and macelineoun) Complese the sales budget one product at a tine. Data table The averabet chice of an bem in each of ste dooartments is as follom: Data table