My neighbor has a catering business. He asked me to do my Potato Salad for a wedding he is doing for 200 peeps. I'm not sure what to charge because I have never done it for a large group like this. I don't know what product cost will be or how much time it will take me. I want to give him a price before hand so there are no questions after the fact. I was thinking of just charging him a flat fee of $1.00 per person ($200). I know he needs to make money off this also so I'm not sure if that is too much or not. Any suggestions?