Percentage Off...

Use Percentage Off to override the use of the filter row as the basis for percentaging on a row by row basis in Table Options within Setup|Tables.

Select a row or rows from the Percentage-based rows list box.
To select adjacent (contiguous) rows, drag the mouse to highlight all desired items.
To select non-adjacent rows, keep the Ctrl key depressed while clicking each item.

Select a row from the Available rows to percentage off of list box to use as the percentage base for the rows selected from the Percentage-based rows list box.

Choose Assign to Selected Row(s) to assign the row selected from the Available rows to percentage off of list box as the percentage base for the row(s) selected from the Percentage-based rows list box.