New at BBQ

I just started a new BBQ business on weekends. I'm doing catering and vending. The only issue we seem to have is how much food do I need for a crowd. I have someone that just wants three meats (no sides) for 100 people. They want pulled pork, chicken and pit beef. I would appreciate if some others would give me their opinion of how much of each meat I would make for 100 people. Also, is there a general rule of how much finished meat I should use per 100 people?

Thanks,
Poppa Baer

Thanks for the info. So I should calculate the amount of meat i'm using on the raw. I was having problems figuring out how many pieces I need for 13 lbs. But I guess if I just buy 13 lbs of chicken that will give me the amount of pieces. Do you charge per person for 3 meats or charge each individual meat. If you charge each individual meat, how do you charge for chicken? Per piece or per pound?

Thanks for your help,

Poppa Baer

(Its really Momma Baer, but sign everything Poppa)LOL