Is there a way to obtain a sum from a repeated group of the Area calculated from a geoshape feature? I originally had this as a text feature, but thought it would make it easier for the end user to draw out the area of biocontrol agent being released, but then that messed up the Total Release calculation I had. I found a different post addressing a similar situation and tried the join() instead of sum(), but that didn't seem to work (came back with coordinate data), so maybe I didn't set the join formula correctly? See snap shot of the table I'm working with.
TIA

this is the formula I had for a join, for biosum_count: