Power Query - Insert a new row summing row values for addition columns

Please take a look at the attached file to see all the detailed steps, but here's a quick overview:

1. Load the data ( I just took what you posted here, but had to some manual splitting, so the first 2/3 of the applied steps are that)
2. Duplicate the querry ( I named it GP_Grouping)
3. Filter out rows you dont want to sum ( though probably better to say the rows you want to keep, but for now it just takes the rows where grouping <> Cash"
4. Grouped the rows by Division, and then added columns for the Sum of the four columns
5. Add a custom column with the name Grouping and the values GP
6. Go back to the original table and append it with the GP_Grouping table

Final Table:

Here's the file:

https://1drv.ms/f/s!AoQIGRpzoxRHgbxBe-I0NdRAmrMPhg