Hi everyone! I'm new to the group and becoming an established independent caterer in chicago of puertorican favorites. I was asked to give prices for several entrees either per tray or per person- i am still trying to figure that out as to which would be best.. ? Its for a party of 150, requested entrees are- -Steak and onions (bistec encebollado) -puertorican rice (arroz con gandules) -stewed chicken (pollo guisado) -potato salad Can anyone PLEASE give me any helpful tips calculating cost? I did on my own and it averaged out to $10 per person for only food costs. And i want to make sure i did it correctly: for example, i multiplied cost per pound of steak xs 150 xs 0.333 + 5... Thank you so much!