If using vertmart, is that the paypal is the suitable one? but i think the price is too much
how about using a visa/master card payment? how to charge for that kinds of payment?
Yes, I used paypal many years now and it is the most widely used online payment.
Yes, that is compatible with virtue mart.
Paypal accepts visa and master card for payment and paypal to paypal of course.
Paypal is widely acceptable except in few countries. It's very easy to setup too.
Price too high as in the transaction charges by Paypal? It's fairly standard. Most payment gateway will charge you the same. In fact, they will charge you for signing up.
Unless you have a https and also a processor, you can't have a payment processor on your website. It's a security risks.