Any number of ways.

One option - with the subtotal cell selected, choose Edit | Copy from the
menu (or press Ctrl-C), then navidate to the other worksheet where you want
the subtotal to be referenced, select the target cell, then choose Edit |
Paste Special from the menu and click on the Paste Link button in the dialog
box that's presented.

Another - with the target cell selected, type an equal sign, click on the
tab where the subtotal appears, then select the cell with the subtotal, and
finally press the Enter key.

"EWI_Guy" wrote:

I am trying to link a subtotal on one worksheet to the total on another
worksheet in the same workbook so that as i enter information in one
worksheet the total on another worksheet changes to match the updated
subtotal.