Johnston Bookstore is the bookstore on campus for students and faculty. The bookstore shows the following sales projections in units by quarter for the upcoming year: (Click the icon to view the average price information.) (Click the icon to view the unit sales projections.) Requirement Prepare a sales budget for the upcoming year by quarter for the Johnston Bookstore, with sales categorized by the four product groupings (books, school supplies, apparel, and miscellaneous). Data table Complete the sales budget, one product at a time. The average price of an item in each of the departments is as follows