Problem
I need to insert some formulas into a 2 dimensional area of cells with VBA. For example below

Of course I can do this for 1 row with VBA using the .Formulas = “=Sum(….)”
but how can I include an area instead of just a range? This seems so trivial but I can’t seem to figure it out. I’m trying to avoid using a loop to fill out every row.
where
yourrangeis a Named Range, or for an actual reference