Money really isn't a matter of interpretation, and I am asking you what the specific flow is. This is what I meant about transparency. So if I have it wrong, please tell me what is correct.
The Balance Details page, as pictured above, has 3 columns that deal with dollar amounts. Amount, Estimated fees, Creator's share. In the second column, clicking the question mark expressly states that those fees are both the transaction fee based on where the ink was purchased and Tapas' share.
So with that set up it goes as follows:
Amount - Fees = Share
Meaning the entire flow is simply:
Purchase >> Give = Amount - Fees = Share
But by what you have said that is incorrect and it goes:
Purchase >> Give - Transaction Fee = Amount - Tapas Fee = Share