Ok so basicly i want to know at how much do i need to sell a product to have
a 15% profit.

the problem is i get charged a 15% commision for selling my products on
Amazon with the Shipping included.

So if a product cost me $10 + $5 for shipping = $15 and i get charged 15% of
that, $ 2.25.

So how much do i need to sell my product to make 15% profit. i need a
formula.

Thanks

Gmata