Agentry - determining the order position of selected row in List Tile View

I have a List Tile View on a detail screen.  This LTV is sorted via a fixed sort field.  I have a single click action set up on the LTV so that when the user clicks on a row I take them to a transaction screen so that they can update the information in the object represented by the clicked row.  On the transaction screen I need to be able to show the user the order position (relative to the fixed sort) in the LTV of the row that they clicked. For example, if the user clicked the 3rd row in the list and the list contains a total of 10 rows I want to display "3 of 10" on the transaction screen.  Is there a way to determine the ordered position of the clicked row?

Thanks,

Tim