If the same SKU appears on multiple lines of the same saved transaction, you can change the price and/or cost on all the lines with the same SKU.
From the POS window, retrieve the saved transaction.
In the Item (SKU) box, enter the SKU of the item for which you want to change the price and/or cost.
Click Menu.
Click
If the Manager's Override dialog displays, have a manager perform the override.
In the "Find Like SKUs and Change the Price" dialog:
enter the new price in the Price box, if desired.
enter the new cost in the Cost box, if desired.
Click OK. The price and/or cost changes on all occurrences of the item on the saved transaction.