Add comparatives to grouped totals queries

[KirRoyale]

I have a totals query of phone call charges by phone number and I want to show a ‘budget’ amount for each number (same amount for all) and a variance against that budget.
Could someone please advise how I can do this at the grouped (phone number) level rather than at the individual call level?
Please see current query below:
SELECT Call1CurrentTbl.電話番号（MSN）, Sum(Call1CurrentTbl.料金) AS 料金OfSum
FROM Call1CurrentTbl
GROUP BY Call1CurrentTbl.電話番号（MSN）, Call1CurrentTbl.[レコード区分], Call1CurrentTbl.表示区分
HAVING (((Call1CurrentTbl.[レコード区分])=2) AND ((Call1CurrentTbl.表示区分)=10));

 

[KirRoyale]

Thank you very much. That clears things up.