Hello Sham,
Thanks for your question.
To get exact costs for Azure resources (your blob and SQL) please use the pricing Calculator.
https://azure.microsoft.com/en-us/pricing/calculator/
Power BI costs per user are listed here:
https://www.microsoft.com/en-us/power-platform/products/power-bi/pricing
Please let me know if you have further questions**
You can mark it 'Accept Answer' if this helped.