Ethereum Tx Cost?

When I transferred ETH and other ERC20 tokens to my Ledger there were obv some transaction fees. So I noticed through etherscan.io that when transferring ERC20 tokens, my transaction was charged in ETH, not the native ERC20 token — so I added up all the ETH transaction fees and figured that I should have less ETH in my wallet, but I have more — also, my ERC20 tokens are less than when I took them off Coinbase. Can someone help me understand this? Is it taking a portion in ETH and a portion in native token? 📷