Withdrawal transactions to crypto addresses outside P2B typically incur a “transaction fee” or "network fee." This fee is not paid to P2B but miners or validators, who are responsible for processing the transactions and securing the respective blockchain network. P2B must pay these fees to miners to ensure that transactions are processed. Since transaction fees are dynamic, you will be charged according to the current network conditions. The fee amount is based on an estimate of the network transaction fees and can fluctuate without notice due to factors such as network congestion. You can check fees here - https://p2pb2b.com/fee-schedule/ or on the withdrawal page.