I’ve been creating a recreation for a while considering of distributing it on steam.

I had a query about taxes. And is that since I’m not a resident of the US, I made my tax questionnaire and I’ve a 10% fee for the sale of video video games as a result of treaty with my nation.

And was I studying that each nation has a tax? particular? (VAT) or one thing like that, for instance United Kingdom 20%

Which signifies that if I promote a recreation of 10 (€) I believe this could occur

State of affairs 1:

1 Unit Sale  ---  10.00 €
- (VAT)            1.66 € 
-------------------------
Sale w/o VAT       8.33 €
- Steam 30%        2.50 €
-------------------------
S w/o Steam reduce    5.83 €
- ISR USA (10%)    0.58 €
-------------------------
Sale income       5.25 €  (Much less taxes from my nation later calculated, this quantity is the one deposited by steam)

State of affairs 1 considers that every subtraction is made on a non-total stability

Or

State of affairs 2:

the proportion is fastened on the entire sale

1 Unit Sale  ---  10.00 €
- (VAT)            1.66 € 
- Steam 30%        3.00 €
- ISR USA (10%)    1.00 €
-------------------------
Sale income       4.33 € (Much less taxes from my nation later calculated, this quantity is the one deposited by steam)

Does anybody know the way this example is dealt with ?, or the place might I get extra info?