I am doing a cake similar to the one posted here:

http://www.cakecentral.com/cake-photo_1381951.html

It's going to be a 2 layer 12 inch square cake with buttercream frosting and an edible image in the middle of the cake. I had to use 3 cakeboards underneath it to support it. It will look like this cake, but will be larger and will not have all the plastic figures on it.

How much would you charge? Without the image included, I've spent $32 on supplies.

Is the edible image going to represent the wresting ring with the wrestlers or are they going to be molded or not included at all.
Also what is the going rate for custom cakes in your area?

It really depends on how you want to charge. Most people charge by the serving. Can you call up some custom bakeries in your area and find out how much they charge per serving for buttercream cake and go from there. If you can't get anyone on the phone maybe you can check on line for bakeries in your area. You don't want to undercut other cakers in your area.


Here are 2 Wilton serving guide links (one is for party serving sizes (1.5x2x4) and the other is for wedding serving sizes (1x2x4)).
Party Cake Baking Time and Batter Amounts - 2 in. Deep Pans:
http://www.wilton.com/cakes/making-cakes/baking-party-cake-2-inch-pans.cfm

Wedding Serving Guide - 2 in Deep Pans:
http://cakecentral.com/article14-Cake-Baking-Cutting--Serving-Guide---2-in-Deep-Pans.html


Since you mentioned the price of ingredients to make the cake what you could do is add on top of that a good hourly wage to make the cake. Don't forget that not only do you add the supplies used in the cake but also the gas to get the ingredients from the store, your time spent shopping, gas/electricity/water you used in your house etc.

Here's a good link that I think might help you out:
http://www.cakeboss.com/PricingGuideline.aspx

I would charge $2.50 per serving, since its a birthday cake. And it doesn't have a complicated design.