Quote 1: “$6 mill fixed costs pa, 45% gross profit margin, and...

Quote 1:

“$6 mill fixed costs pa, 45% gross profit margin, and approx $2m marketing. Answer: $5.5 mill EBITDA”

Quote 2:

“Right now, I expect marketing budget to be about the same or modestly higher”

For the sake of clarity... you expect marketing to be equal to or modestly higher than $4.4M.

Quote 3: (when asked how statement 2 fits into statement 1)

“Fits well, thanks”

Wow. Just wow.
All the best with your various forecasts.