What you are being asked to enter is all of your rental income while you were a Calif resident (if any), plus rental income from Calif sources while you were a nonresident (if any).
If you were a Calif nonresident for all of 2019 then you would just enter the Calif rental income(loss).
Sch CA(NR) columns A-D hold your total income and adjustments as if you had been a Calif resident all year. Column E is for just the Calif amounts as described above and those amounts are what are subject to tax on Form 540NR.
