Calculated Quieres

[Mschneider331]

I need some help understanding what I need to do I'm stuck currently trying to figure it out.

My instructions are:
Build a query that will display the invoice number, description and a calculated field named Extended Price that will show the total price (the retail price and any applicable discounts) of each item invoiced that has a discount percent.

I know this is impossible without the file. System keeps failing download I will try again.

[ItsMe]

Where are you stuck? Are you having trouble creating a calculated field? What happens if you try one of the built in tools displayed within the Ribbon of the Query Designer? Does the term, 'Alias', mean anything to you?