That would mean nearly 800 empty seats in the Jodi stand, there were a max of 300 empty.. So 2,400 in the Jodi ,800 in the Des Kelly, it`s not difficult to estimate an accurate figure plus or minus 100 in a two sided ground.
I have no idea where the 2,785 came from*. Might make sense if it excludes members, season ticket holders and assorted freebies
* Irish Times Journo.apparently