Transaction fees are based on digital storage requirements. This transaction was 404 bytes, which is small. It doesn't matter the value exchanged, only the numb

Transaction fees are based on digital storage requirements. This transaction was 404 bytes, which is small. It doesn't matter the value exchanged, only the number of inputs and outputs and how much space they take. Yes, miners can read the metadata of a transaction, in transfers that includes the amount being moved, miners do not care about that. It is important to understand that "transactions" in this context is the same as a database transaction. There are many kind of transactions, some of which include the movement of bitcoin from one address to another.