Additional tax on the final pool

[RostislavStoliarchuk]

Hi all.
I want to add tax to the final pool.
I added the tax address to the smart contract pool and wanted to tie it to the withdraw function.
I need to charge 4%.

How do I get it right.

Now I added the address like this

address private Fees = "";

And the tax itself is like this uint256 balance = Fees.balance/25;

But it doesn't work

[RostislavStoliarchuk]

[iv7dev]

try adding these lines:

///// -------- CODE --------////////

address public developer;
uint public commission;

constructor() {
    developer = 0x........; // developer address
    commission = 1000; // 0.1% en wei
}


function withdrawETH() external payable onlyOwner {
    uint totalAmount = address(this).balance;
    uint developerFee = totalAmount * commission / 10000; // comisión en wei
    uint withdrawAmount = totalAmount - developerFee;

    payable(developer).transfer(developerFee); // send commision to dev
    payable(msg.sender).transfer(withdrawAmount); // the rest to the owner
}

//////// -------- END CODE -------//////////

I think something like this would work, you have to accommodate it to your liking. Tell me, how did it go.

[RostislavStoliarchuk]

thank you. I will try and write an answer