The following FIXED level of detail calculation is placed on a visual, using the AVG aggregation. $\{$FIXED$[$Customer Name$]$: SUM$([$Sales$])\}$ The resulting formula, in full can be thought of as: AVG$(\{$FIXED $[$Customer Name$]$: SUM$([$Sales$])\})$ Which of the following best describes the result achieved: Total sales for all customers Average sales per customer The sum of all customer averages Total sales per customer