For a merchant looking to take a percentage off the sales of vendors on a website I see some ecommerce plugins are offering this option. However it tends to be the PayPal chained payment gateway and I was wondering what other options are available out there.
Reason i ask is that using PayPal in the first place results in you losing 10 % of the transaction to them if I have understood correctly? This leaves little for the merchant themselves to take off an additional amount.
Are there other options? Better ways of doing it?