Attic Ventilation rule...

Area of ceiling adjacent to the attic divided by 300 for a home less than
20 years old. (divide by 150 for older homes)

Thanks for looking, TAB Dude, but that's not the question. I think I know
what my
target *should* be. What I need to know is what rate I'm *now* getting for
the eave part after combining the 2" holes & the metal eave vent.