You can get to the Sales By Line Item Report by going to Reports > Sales > Sales By Line Item.
This will then bring you to the screen below:
RED - Here you can choose the Date Ranges for the report.
ORANGE - Select whether you want to view it as a billed job.
Blue - If you would like to sort by materials only
Purple - If you would like the report based off of the date the Job was completed on then you will check off "By Move Date".
Green -Don't forget to click "View" to see your Report.
PINK - Select Branch
Yellow - Export to PDF or CSV!