In this demo you can:

- base footer summaries on actual row values or on group results (see Options/Summary)

- change the summary types (right-click on a summary cell)

- calculate using selected records only (see Options/Summary)

- ignore Null values for Count and Average summaries (see Options/Summary)

- group the table by dragging column header(s) to the grouping area (see different summaries depending on the actual grouping)