That is correct ...line 8 should correctly show the +2000 and the -10000 for a net line entry of -8000. This is how that line works. There could be 10 entries on that line and the net total is on Sch 1 line 8 ... this is SOP.
They get the information from the filed return same as you have on the PDF you have in your hands and if both items are not individually listed on the sch 1 line 8 then the "overflow statement" is also sent ... do don't worry, they have everything the need to process the return.
