I am horrible with prices... always have been.  I tried pricing them all out but either I'm told way too much or i'm too inexpensive.  She wants a double tier of this cake, adding a mermaid as well.  Size will be 8" bottom and 6" top.  She wants frosting except for the fondant pieces.  She also wants a smash cake.  Can y'all help me with prices please?

You mean 2 tiers   Of course you already know there many many things that enter here if you have read any of the many posts on here   My suggestion is around 300 dollars 

39 servings -- gonna round it to 40 just for easier math -- i'd do $6 -$7 per serving and $25 for the noah turns 6 thing and it would not be edible $265 - $305 -- if my math is right --  if the kids name is bartholemew frederick or something long i'd charge more -- $2 per letter 

and for the legs on the octopus, and the fins on the fish, and the little red stripes coming off the crab, and his arms -- don't try to cut those out -- make snakes of fondant and press them down -- much easier/faster --

make all the eyes at once with royal -- pipe the bubbles on -- for the shells and all i'd press candy clay into chocolate molds

How do you normally price your cakes? I would agree with kakeladi on the price. For my area, I might even be slightly under at around 285.

pipe the bubbles on and flatten with your finger as soon as possible -- it might have to sit for a few minutes but don't let them fully crust before flattening -- you could use a smoothy smooth uber clean towel too 

I’m horrible at this as everyone is learning and tend to undercharge for everything...but even my cheap calculations would lead me to $248 plus tax.

And I don't think people added in for the smash cake.... especially if it is a mini version of the one pictured. 

I didn't account for the smash cake. I only do 4 inch smash cakes, with simple decorations, and no charge. If they want a 6 to match the cake including decorations, I price it the same as a regular cake. I was asked to do a 10 inch smash cake for free and just sat there with a blank look lmao

I tend to agree that you should charge at least $300 for the main cake (including a small, modeled mermaid instead of the custom topper) or $325 for the two tiered cake and a small, simply decorated smash cake (4" or 5").  Of course some people tell you your prices are too high!  That's because they think they are entitled to a bespoke, designer cake at Walmart prices.  That kind of customers you do not need.

And you have to account for people like that who expect it. OP doesn't state the size of the smash cake, or customer expectations. 

yes I forgot the smash cake 

A 10 inch smash cake?!?!?!?! That’s bigger than the actual cake!!!!!! Is the whole party going to take turns smashing it like a piñata?!?!

That's what they wanted and expected me to provide....free

of course it is free. And the cake they order and pay for is a 4" one? :)    Sheesh...people amaze me...

of course it is free. And the cake they order and pay for is a 4" one? :)    Sheesh...people amaze me...

i'm not into smash cakes -- maybe a cupcake or an oversized cupcake -- or I have one of those rose pans that bakes up six  roses for girls just to give you the size  then the birthday girl would get one little rose cake -- or a train cake that will make an engine and a caboose car for boys 'cause they're a little smaller than the rose -- I make a plain vanilla pound cake -- no food color -- and a little glaze --

I don't get wanting your kid to get all covered with icing and eating all that mess and getting all sticky ready for a bath -- not my thing -- I don't see it as a good memory -- "here I am at my party -- got all dressed up and now i'm covered in crap" as a kid I would be sitting there saying "wth was mom thinking"

You are so funny, -K8memphis!  I don't think one-year-olds register dirty!  I've only done one smash cake and it was a 4", but it did have six layers, rainbow cake.

4" with six layers. Happy baby!

omg -- I would have registered it i'm sure! and probably gotten yelled at too hahahaha

His parents were delighted!  I, on the other hand, was a like you, a bit horrified.