Many customers still do not know how to determine how much to pay for a transaction. You can determine fees by viewing transaction details; or calculate the difference between input and output. In essence, this is the process of sending and receiving money in the transaction.
It is a fact that when you make large transactions, the greater the bitcoin fee that customers pay the larger. Because trading has occupied a lot of space in the transaction.
Therefore, it is also possible to rely on the transaction size to determine the required fees. But the charge, the fee determination still causes many errors; difficult for customers.
However, if you are using a Bitcoin Coinbase wallet purse then you are free to make transactions without having to worry about fees.
This wallet contains dynamic charges to charge based on the transaction size of the traffic through the internet.