c# - MS-Access - You tried to execute that does not include the specified expression 'Quantity' as part of an aggregate function -

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I tried to create a new query table containing Products , Product Quantity Strong>, total product value , cost per product , this error is happening "You have tried to execute that does not include the specified expression 'quantity' Has been an overall work "

My product is included in the table 

  Unique No Productive Product Name Each Quantity Total Amount 1 P101 Pen-Turbo 40 2 80 2 P102 Notebook 150 1 150 3 P 103 scale 10 3 30 4 p 102 notebook 150 1 150 5 p 101 pen-turbo 40 1 40   
 Now I need to sell that product which is  < pre>  ProductId Productname Quantity Total Each P101 Pen-Turbo 3 120 40 P102 Notebook 2 300 150 P103 Scale 3 30 10 I tried this query but received the error  SELECT Prod uctId, product, productivity, product        Quantity (SM) from the new Equios group help me in this way Thanks in advance.  
 
 
  product product, product, SUM quantity ) Quantity, Productivity, Product     from Total Amount (Total Amount)

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