Hi Yogesh,
https://zoom.us/pricing/zoom-phone
and
https://support.zoom.us/hc/en-us/articles/360020808292-Managing-phone-numbers
These are the best links I found.
The packages are these:

In your scenario, Currently you have Included Phone numbers, which means it is how many phone numbers you have included against these packages. So as I mentioned, you still can port over or procure 58 + 574 numbers from the packages ( also called licenses ) that you already have.
Add to that, the phone numbers can be separately purchased as an Additional phone number ( if other than the package included numbers, you want to park additional numbers ) or toll free numbers if you scroll down on the pricing page.
In Summary, Package is a License which includes a phone number ( Metered and above licenses )
Phone number is a DID, which could be the one that comes included per package or is obtained separately as an Additional phone number.
Hope that helps