A work type MyCo-FW-PurchaseApp-Work-Request has a PageList property .LineItems of class MyCo-FW-PurchaseApp-Data-Item.
Another work type, MyCo-FW-PurchaseApp-Work-Order has a PageList property .ItemsForVendor of class MyCo-FW-PurchaseApp-Data-Item.
An item has a calculation .TotalPrice = .Quantity * .UnitPrice.
The application is experiencing behavior where the TotalPrice is calculating correctly for Requests but not for Orders.
Which of the following is the most likely explanation for this issue? (Choose One)