worksheet.It is required that the completed workbook must contain the following three worksheets (and you can add more worksheets if necessary) : The first worksheet (named "Sales") records the sales detail The second worksheet (named "Catalogue") shows the detail of each product The third worksheet (named "Analysis" ) shows the analyzed results and your findingsMarks Allocation 1. The first worksheet (named "Sales") 5%2. The third worksheet (named "Analysis") 5%Marking Criteria 1. Design of formula (easy to understand?), worksheet formatting (e.g. conditional formatting), correct method(s) (e.g. data validation) is/are used to prevent incorrect data.2. Presentation format of analyzed data is clear, and findings are clearly described.IMPORTANT NOTICEEach student has to submit his/her own work. Plagiarism will be treated seriously.Late submission will receive ZERO marksThe result of this assessment will not be counted if you do not meet the minimum attendance requirement (if any) governed by the general academic regulations of your programme/course unless approval of the campus principal has been granted.