Access Query Running Subtraction

I'm working on a project, in which I need to calculate all the due payment and to show in DataGridView. I've made a query in Query Design. But I'm unable to make query to get total, paid amount, due amount. Here is the query:

SELECT Payment.PayDate, OrderMaster.OrderId, OrderMaster.CustomerName, OrderMaster.TotalAmount, Payment.PayAmount, OrderMaster.TotalAmount - Payment.PayAmount AS DueAmount FROM OrderMaster INNER JOIN Payment ON OrderMaster.OrderId = Payment.OrderId;

I'm getting the query result like this:

   PayDate   | OrderId  | CustomerName | TotalAmount | PayAmount | DueAmount
   -------------------------------------------------------------------------
   20/12/2014 |     1   | Someone      |   5000      |  2000      | 3000
   22/12/2014 |     1   | Someone      |   5000      |  1000      | 4000
   25/12/2014 |     1   | Someone      |   5000      |  2000      | 3000

I want the query result like this:

    PayDate   | OrderId | CustomerName | TotalAmount | PayAmount | DueAmount
   -------------------------------------------------------------------------
   20/12/2014 |     1   | Someone      |   5000      |  2000      | 3000
   22/12/2014 |     1   | Someone      |   5000      |  1000      | 2000
   25/12/2014 |     1   | Someone      |   5000      |  2000      | 0

Please help me to make the exact query to get this result. Thanks.