In the Tables section, a Dashboard can be used only for totals and subtotals. Data functions return to the underlying values and recalculate the value according to the type of function specified.
You can apply a break (subtotal), grand, or custom total to any column. A grand total on a numeric column applies a default sum function. However, each column can have a number of grand totals, each with a different aggregate function applied to it. The table below lists the data functions that you can use with break totals and grand totals.