How much does BIM 360 cost per year?

I'm curious to know, can you elaborate on the pricing structure for BIM 360? Specifically, what is the approximate annual cost for using this software? Does the pricing vary based on factors such as the number of users, features accessed, or any other specific requirements? Additionally, are there any discounts or promotional offers available for first-time users or for larger teams? It would be greatly appreciated if you could provide me with a clear breakdown of the expenses associated with implementing BIM 360 into our workflow.