Calculation of open ordered amount on 3-way match POs

Summary:

We have made the below observation related to the calculation of the open ordered amount on POs. Is this correct?

Content (required):

Match Approval Level = 2-way:

Remaining Amount = Ordered Amount minus Invoiced Amount

Match Approval Level = 3-way:

Remaining Amount = Ordered amount minus (Received Amount OR Invoiced Amount, whichever is higher)

Regardless of Invoice Match Option (ie Order or Receipt), Fusion takes the higher amount of received and invoiced. 

Is this correct?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):