count number of rows in table with aggregation in a new column dynamic on filter

Is it possible to calculate the total number of rows in a table with aggregation in a new column which will update dynamically on changing the widget filter?

For E.g.

If the total number of records are 58, then all the values under the new column will be 58, but if a widget filter is applied and the row count is changed to 52 now, then all the values under the new column will be 52.