Depending on the situation, how large the party. If everyone sits and eats at the same time, you can count the heads or tables and multiply by how many people are sitting there. It is a very hard thing to do. I was at a party one time as a guest and the person throwing the party tried to low ball the caterer and told him 75 people would be there, and guess what he had 102 and ran out of food. He was pissed, I explained to hmi that it is his fault for trying to beat his caterer. Good luck with that.
Jacked UP BBQ vending
Ocean County Pig Assassins competition team retired and is now known as Jacked UP BBQ