To display data on month basis and calculations

Hi All,

I am little new for writing this TSQL query.

Can someone please help me here. I would really appreciate.

I have 2 tables here

1.

table name:  Budget

column: Budget ID, periodstart,periodend,TotalbudAmount,AmountPO,AmountRemaining

2.

Table Name : POtable

column : POID,BudgetID,AmountApplied,Dateapplied

I want to write a query in such a way that the data is displayed on months basis, so basically I want to divide TotalBudAmount by 12 months(jan till dec) .

Also using second table I want to calculate how much amount is Available;

Formula:  AmountAvailJan =TotalBudAmount /12- AmountApplied (from jan if any)

Example of how I want to display data in table

BudgetID   PeriodStart  Periodend  AmountJan AmountAvailJan AmountFeb AmountAvailFeb AmountMar AmountAvailMar........AmountDec AmountAvailDec 

Please help.

Regards