Knitting fundraiser

[Izzie]

So I desperately need to raise money for a new laptop this Christmas.

Aside from doing simple (or complex) digital paintings of pets for people, I've also thought of doing scarves.

I'd consider myself on the "higher novice" range of knitting skill, and scarves go the fastest.
But I am by no means a businesswoman. I have no idea how much I'd need to ask for per scarf in order to make a profit after buying the yarn and paying for shipping.

Anybody have any tips?

I've also crocheted hot pads and dishrags, but they take much longer.