What does Power BI cost?
The cost of Power BI depends on the functionality you need, the number of users, but also the required storage and computing capacity. Power BI is included in some Office 365 packages.
You can get started on your own for about $10 per month per user. However, if you want to make advanced analyses, you need storage and computing capacity for large amounts of (big) data and if you want to make reports available in the cloud, you need a more complete license. You can find more information about this on the Microsoft website.