Please help me to fix the transfer fees for Pancakeswap

I have the following code that it is working on wallet to wallet but when I buy and sell on Pancakeswap only on buys the fees are burned and send to dev wallet, but if anybody sell the tokens the fees are not take.

What should I add/change so it will work on sells on Pancakeswap, not only when somebody buy tokens?

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.2;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";

import "@openzeppelin/contracts/security/Pausable.sol";

import "@openzeppelin/contracts/access/Ownable.sol";

contract MyToken is ERC20, ERC20Burnable, Pausable, Ownable {


    uint public BURN_FEE = 5;

    uint DEV_FEE = 5;

    address public founder;

    mapping(address => bool) public excludeFromTax;


    constructor() ERC20("MyToken07", "MTK07") {

        _mint(msg.sender, 1000000 * 10 ** decimals());

         founder = msg.sender;

         excludeFromTax[msg.sender] = true;


    function pause() public onlyOwner {



    function unpause() public onlyOwner {



    function _beforeTokenTransfer(address from, address to, uint256 amount)





        super._beforeTokenTransfer(from, to, amount);


    function transfer(address recipient, uint256 amount) public override returns (bool) {

        if(excludeFromTax[msg.sender] == true) {

            _transfer(_msgSender(), recipient, amount);


            uint burnAmount = amount * BURN_FEE/100;

            uint adminAmount = amount * DEV_FEE/100;  

            _burn(_msgSender(), burnAmount);

            _transfer(_msgSender(), founder, adminAmount);

            _transfer(_msgSender(), recipient, amount - (burnAmount + adminAmount));


        return true;