Tolerance rules: Which amounts are compare in a partial receipt (P4312)?

We have the following case with the client: The tolerance rules are active in the Processing Option of P4312, and they are configured in P4322 to control the order amount in tolerance percentage (1%).

The customer made a unit cost change to an Order, and then a partial receipt (First change; First receipt). He repeated the process, changed again the unit cost of the items and made partial reception (Second change; Second reception). Repeated the process, changed the unit cost again, but cannot receive the last units due to tolerance error (Third change; Third reception attempt).

According to Oracle guidelines, if the