Hi,
I would suggest that you check out ​@Kelsi response in the below link. It is explained pretty well how the pricing works

Hi ​@Pradeep36868! What ​@Fario Consulting included is correct.

Seats are only used if you’re adding additional users to your organization. So if you have a team of 10 people, each person would need a Calendly account to host events with. However, if you’re referring to your clients/invitees, they do not require a Calendly account or additional seats to book times under your events 

Let us know if you have any questions!