Is the code not in the window about the results?
eg, I just right clicked and ran this sp. Above the results window I can see
USE [Reporting1213]
GO
DECLARE@return_value int
EXEC@return_value = [dbo].[Finance_AvB_Accom_Summary]
@tomonth = N'October'
SELECT'Return Value' = @return_value
GO
If I want September, I change October to September. Is this the kind of thing you are looking for?
Bex