If the word total occurs before an expression, the calculation will be made over all possible values given the current selections, but disregarding the chart dimensions.
The total qualifier may be followed by a list of one or more field names within angle brackets. These field names should be a subset of the chart dimensions. In this case the calculation will be made disregarding all chart dimensions except those listed, i.e. one value will be returned for each combination of field values in the listed dimension fields. Also fields which are not currently a dimension in a chart may be included in the list. This may be useful in the case of group dimensions, where the dimension fields are not fixed. Listing all of the dimensions in the group causes the function to work when the cycle or drill-down level changes.
