How can make DECLARE take a value from stored procedure.

Question

How can i make DECLARE @T take this value from stored procedure

my stored procedure:

   ALTER PROCEDURE [dbo].[sp_GetTotlePrice]  
   (  
   	@Users_Id bigint  
   )  
   AS  
   BEGIN  
   DECLARE @R TABLE  
   	(  
   		Price bigint,  
   		Quantity bigint  
   	)  
   	INSERT INTO @R  
   	SELECT	TOP 1000000   
   	   M.Price,  
   	   B.Quantity   
   	   From Basket B  INNER JOIN   
   	   Medicaments M ON M.Medicament_Id = B.Medicament_Id WHERE @Users_Id = B.Users_Id  
   		  
   	SELECT SUM(Price * Quantity) From @R  
     
   END  

Answer 1

I found my mistake
firstly i nead to return a value in my stored procedure
i add

   DECLARE @T AS bigint  
   SELECT @T = SUM(Price * Quantity) From @R AS TotlePrice  
   \--SELECT SUM(Price * Quantity) From @R AS TotlePrice  
   RETURN @T  

then

   DECLARE @return_value bigint  
   EXEC @return_value = [dbo].[sp_GetTotlePrice]  
           10  
   SELECT 'Return Value' = @return_value