Hello @Ogbannu, Paschal (NonEmp) - Welcome to Microsoft Q&A Forum, thank you for posting your query here!
You can start by reviewing the below 2 links:
This provides the pricing details based on the tier for capacity and operations:
https://azure.microsoft.com/en-us/pricing/details/storage/blobs/
This link is for Pricing Calculator which shall help comparing the costing between the tiers.
https://azure.microsoft.com/en-us/pricing/calculator/
Kindly let me know if you have any further queries, I’ll be happy to assist you further.
Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.