Although I usually warn people that my is subject to error this time I am right.

I believe he was referring to to his investment which he pointed out he wasn't getting back.

the $1,000 donation + 100 sets of chips = $1,800

Now if he is talking about his initial cash outlay it would be $4,000 for the chips (though they have a cash value of $1,000 so its not really an outlay more like a conversion) + his donation + his other numerous up front expenses --- I am sure there are many.