The formula used to calculate the total price per order is:
=Quantity * Price
This multiplies the quantity ordered by the price per item to get the total price for that item. Formatting the control property as currency formats the result of the calculation to display as a dollar amount.
Hiding the repeated Customer label and name field in the subform cleans up the appearance and focuses the user on the relevant order details rather than redundant customer information. The subform header is also hidden since it is unnecessary in this case.
Please let me know if you have any other questions!