Public price higher then what I see in material settings after my profit

Hi,

I wonder what is the way to control the final price of my product? I hope you guys can help on that.
After set up my profit I see different price then what potential buyers see.

When I'm logged in on material settings I see shapeways asks for €3.11
When I click on "View product" (logged in) price is €3.73. The final price than is completely different!!
The public price is than completely different from what I set editing details of my pricing. Basically I edited my profit to reach out interesting price for the client.
Obviously I have 0 control over the final price this is very annoying for me.

Bellow:

A+B=C - this is under Edit details
D - when I click View product (logged in)
E - what I see as price when logged off

(A is what shapeways asks, B is my profit, C is what I hope client will pay, D is what I see after click on "View Product", E is actually what client should pay). To me it makes sense to be:
E=C
D=A

Thanks in advance

ouch

thank you

3.73/3.11=1.2 this is the 20% VAT.
If like me you are mainly selling in the US and you are based in Europe I can describe my process for setting up my markup:
- log in
- click on "design"
- go to the model you want to set up the markup for
- edit Details
- look at the price in € for instance say it is 3.11€
- estimate a markup in €, here let's choose 2.00€
- convert the sum of both in $ (you have the change rate written on top of the markup window). Let's say it is $7.09.
- choose a final price in $ that is more appelling, here I would choose $6.99
- convert it back in €: 5.035€
- put the final price in € truncated to 2 decimal: 5.03€
- the markup is calculated automatically in € (hey! there is some automation!)
- do that for all materials and for all the models
- ask Shapeways for an easier process