First off, you may or may not have noticed that Microsoft moved the naming goalpost slightly on the naming. It’s no longer Office 365, it’s now Microsoft 365. Actually it has been for a while, but old habits die hard.
New pricing has started and here is the short of it…
“Microsoft 365 Business Basic (from $5 to $6 per user), Microsoft 365 Business Premium (from $20 to $22), Office 365 E1 (from $8 to $10), Office 365 E3 (from $20 to $23), Office 365 E5 (from $35 to $38), and Microsoft 365 E3 (from $32 to $36).”

You can see more details on Microsoft’s site here:

https://www.microsoft.com/en-us/microsoft-365/blog/2021/08/19/new-pricing-for-microsoft-365/