Need to add a row under each group of similar data and add a Sum above each section

I have basic understanding of VBA but this one is a little over my head. I am trying to take a table of invoice line items and divide by common invoice numbers. THEN add a sum of each section above the section. I found through searching some code that ALMOST gets me there but it is putting the sum below the section and I have to have it above the section. The code I am currently using is listed below as well as the spreadsheet. Any help would be greatly appreciated. Thanks,

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Rothfos Invoice Template2.xlsm