FIND ALL
 

All of the cells in my spreadsheet in col A contain a dash ('-').

After I use DATA/SUBTOTALs, columns and click the outline level 2
symbol (at the left of the spreadsheet), only the totals and the grand
total are displayed.

If I click FIND, enter a dash (-) in the FIND WHAT box and click FIND
ALL, will the number of cells found be just the visible cells
containing a dash (-) or all cells containing a dash (-)?