Use the following procedure to subtotal a range of line items on a POS transaction.
Ring up the transaction as you normally would.
Click Menu, and then click Calculate and Show Range Subtotal. The Subtotal Recap dialog box displays.
In the From # box, enter the number of the first line-item you want to include in the subtotal.
In the To # box, enter the number of the last line-item you want to include in the subtotal.
Click OK. The subtotal information displays.
To calculate subtotals for another range of line items, repeat steps 3 through 5.
Click Cancel to close the dialog box.