Thank you for responding. I was not sure that you could perform calculations within the quantity field of invoices and sales receipts in QBO as I have done in desktop. Most of my clients use Essentials or Plus. I have seen that there is an app for using a scale to complete invoices and receipts in POS, but none of my clients have POS. Also, the items being weighed are not small items coming across the cashier's counter. These are bigger, sold by the truckload.