When a user withdraws cryptocurrency from their Cointree account to a cryptocurrency address outside of Cointree, a network fee is incurred. This network fee is deducted from the crypto asset you are withdrawing.
Cointree charges a network fee to cover the cost of the withdrawal transaction. This fee is used by Cointree to pay the miners or validators who facilitate and secure the transactions on the blockchain.
Network fees fluctuate based on real-time conditions of the blockchain and can change without notice. Generally, if the network congestion on a given blockchain is high, the network will set higher fees to process each transaction.
You will be able to view the network fee from the send coin/cryptocurrency screens, once you have selected the coin and network for the transaction.