reckon in
arvesse võtma; kaasa arvama
olemus
https://idioms.thefreedictionary.com/ :
To include or figure some number or people or things into a greater sum or calculation. A noun or pronoun can be used between "reckon" and "in."
Be sure you reckon Janet's husband and kids in your numbers when you're counting everyone who's coming to the reception.
We haven't reckoned in these sales yet, so the figures for this past financial quarter are a little off.