Using AVG in SQL Query

Using AVG in SQL Query

My current SQL Query is:

SELECT
"Client Info",
avg("Revenue") FROM  "Funded Deals" 
                  GROUP BY "Client Info" 

The current table that this is creating:

Client Info
avg(Revenue)
Previous
4175
1st - New
3411
1st - Old
3013
Renew
3069

While this works as I had hoped, I am looking for additional information. How would I write a query so that I have the average of Previous and Renew combined as well as 1st -New and 1st Old combined. 

Along with this, I am looking for a Count of "ID" Grouped By "Client Info". However, I am having trouble writing the correct query for this as well.

Please let me know of any changes or how can I make this happen. If more info is needed, please let me know.