I'm mulling over a business idea, and the part of it that I can't wrap my brain around is the payment processing part of it. Here's a simple example, not really my idea, but an easier example:
I have a consignment shop site, where people post items, and other people buy them. As the site's owner, I'd like a cut of each sale, and want to take 2% of the sale price as a transaction fee.
How would I go about doing that? The only way I know is using something like PayPal, having the original payment go to me, and then I pay the seller (minus my fee), but that seems like it would rack up a lot of PayPal transaction fees.
Can someone clue me in on a better way to do this? It seems like a pretty standard business model. Thanks!