I need to make a cake to feed 100 people. I have a 12x18 pan, which should feed 72. Should I just make it a double layer, probably more than she needs though? I really have no clue what to charge. I plan on making fondant chili peppers and a fondant hat to go on top. I've called a few shops around me and one said for 100 people it would be $220 and another said $66 for a sheet cake to feed 100. What a price difference! Thanks for any replies.

A 12x18 pan feeds 54 if it's a single layer (2x2 standard size serving). Figure up all your costs, then price yourself accordingly for your market, and what you want to "clear" on the cake. When you are calling other places, make sure you are comparing apples to apples (ie: that you are asking for their price for a 12x18 to compare to your price for a 12x1.