Deductions & credits

Still a bit unclear as to how much of my mortgage interest I can claim on CA itemized deductions if I use the federal standard deduction.

Hypothetical:

   Mtg Interest paid in 2018: $8,800

   Qualified Interest I could have claimed if I had itemized on Fed taxes:  $4,378

   Qualified Interest I could claim when itemize on CA taxes:  $8,080

On my CA adjustments worksheet, TT plugs in $3,699 as the amount I can add back (difference between $8,080 I can claim on CA taxes and $4,378, the amount I could have claimed if I had used standard deduction on Fed taxes). Is this correct, or can I claim the full $8,080 and how do I override the figure TT automatically plugs in?