how do people make money?

serious question

i needed a 5 gallon jerry can for diesel, so i went online, checked the usual sources and decided on buying one from vietnam because, well it was the cheapest
a 5 gallon midwest can (made in the USA)
the seller is out in vietnam, but i dont need it today, and well, at 15.99 hes the cheapest one on there
(and that includes free shipping)


plus, if this is an american made can, perhaps it will ship from a US location, right?

so i ordered it sunday night before going to bed


well long story short, it arrived today
brand new, and in a cool box from autozone

but thats not all thats in the box, there is also...a receipt, so lets go over that shall we


midwest can 28.99
shipping charge 10.00
next day delivery 3.01

sub total 35.98
tax 1.74

total 37.72




so whats going on here?
unless someone stole a credit card and is selling stuff online bought with it, they have got to be loosing money on it, no?

Where did you learn math? You are way off.