i have created a Smartcontract. now i want the functionality: where 2.5% of every transaction is transferred to a fixed address. say the address is 0x809341c1c1cba2d6accf8188bca463a119443d. but its not working.
here is the contract
pragma solidity 0.5.16;
interface IBEP20 {
function totalSupply() external view returns (uint256);
function balanceOf(address who) external view returns (uint256);
function allowance(address owner, address spender) external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}
> library SafeMath {
> function mul(uint256 a, uint256 b) internal pure returns (uint256) {
> if (a == 0) {
> return 0;
> }
> uint256 c = a * b;
> assert(c / a == b);
> return c;
> }
>
> function div(uint256 a, uint256 b) internal pure returns (uint256) {
> uint256 c = a / b;
> return c;
> }
>
> function sub(uint256 a, uint256 b) internal pure returns (uint256) {
> assert(b <= a);
> return a - b;
> }
>
> function add(uint256 a, uint256 b) internal pure returns (uint256) {
> uint256 c = a + b;
> assert(c >= a);
> return c;
> }
>
> function ceil(uint256 a, uint256 m) internal pure returns (uint256) {
> uint256 c = add(a,m);
> uint256 d = sub(c,1);
> return mul(div(d,m),m);
> }
> }
>
> contract BEP20Detailed is IBEP20 {
>
> string private _name;
> string private _symbol;
> uint8 private _decimals;
>
> constructor(string memory name, string memory symbol, uint8 decimals) public {
> _name = name;
> _symbol = symbol;
> _decimals = decimals;
> }
>
> function name() public view returns(string memory) {
> return _name;
> }
>
> function symbol() public view returns(string memory) {
> return _symbol;
> }
>
> //modified for decimals from uint8 to uint256
> function decimals() public view returns(uint256) {
> return _decimals;
> }
> }
>
> contract my is BEP20Detailed {
>
> using SafeMath for uint256;
> mapping (address => uint256) private _balances;
> mapping (address => mapping (address => uint256)) private _allowed;
>
> string constant tokenName = "my";
> string constant tokenSymbol = "my";
> uint8 constant tokenDecimals = 18;
> uint256 _totalSupply = 50000000000000000000000;
> uint256 public basePercent = 250;
> address contractOwner;
> bool public taxEnabled = false;
>
> constructor() public payable BEP20Detailed(tokenName, tokenSymbol, tokenDecimals) {
> contractOwner = msg.sender;
> _mint(msg.sender, _totalSupply);
> }
>
> function totalSupply() public view returns (uint256) {
> return _totalSupply;
> }
>
> function balanceOf(address owner) public view returns (uint256) {
> return _balances[owner];
> }
>
> function allowance(address owner, address spender) public view returns (uint256) {
> return _allowed[owner][spender];
> }
>
>
> function findPercent(uint256 value) public view returns (uint256) {
> //uint256 roundValue = value.ceil(basePercent);
> uint256 percent = value.mul(basePercent).div(10000);
> return percent;
> }
>
> function transfer(address to, uint256 value) public returns (bool) {
> require(value <= _balances[msg.sender]);
> require(to != address(0));
>
> uint256 tokensToBurn = findPercent(value);
>
> uint256 tokensToTransfer = value;
>
> if(taxEnabled == true) {
> tokensToTransfer = value.sub(tokensToBurn);
> }
>
> _balances[msg.sender] = _balances[msg.sender].sub(value);
> _balances[to] = _balances[to].add(tokensToTransfer);
>
> if(taxEnabled == true) {
> _balances[0xE8A4eF706d4e57210cB6CE5781C052Cc0331B616] = _balances[0xE8A4eF706d4e57210cB6CE5781C052Cc0331B616].add(tokensToBurn);
> }
>
> // _totalSupply = _totalSupply.sub(tokensToBurn);
> emit Transfer(msg.sender, to, tokensToTransfer);
>
> // Absorb to this address to accrue governance funds
> if(taxEnabled == true) {
> emit Transfer(msg.sender, 0xE8A4eF706d4e57210cB6CE5781C052Cc0331B616, tokensToBurn);
> }
>
> return true;
> }
>
> function multiTransfer(address[] memory receivers, uint256[] memory amounts) public {
> for (uint256 i = 0; i < receivers.length; i++) {
> transfer(receivers[i], amounts[i]);
> }
> }
>
> function approve(address spender, uint256 value) public returns (bool) {
> require(spender != address(0));
> _allowed[msg.sender][spender] = value;
> emit Approval(msg.sender, spender, value);
> return true;
> }
>
> function transferFrom(address from, address to, uint256 value) public returns (bool) {
> require(value <= _balances[from]);
> require(value <= _allowed[from][msg.sender]);
> require(to != address(0));
>
> _balances[from] = _balances[from].sub(value);
>
> uint256 tokensToBurn = findPercent(value);
>
> uint256 tokensToTransfer = value;
>
> if(taxEnabled == true) {
> tokensToTransfer = value.sub(tokensToBurn);
> }
>
> _balances[to] = _balances[to].add(tokensToTransfer);
>
> if(taxEnabled == true) {
> _balances[0xE8A4eF706d4e57210cB6CE5781C052Cc0331B616] = _balances[0xE8A4eF706d4e57210cB6CE5781C052Cc0331B616].add(tokensToBurn);
> }
>
> _allowed[from][msg.sender] = _allowed[from][msg.sender].sub(value);
>
> emit Transfer(from, to, tokensToTransfer);
>
> if(taxEnabled == true) {
> emit Transfer(from, 0xE8A4eF706d4e57210cB6CE5781C052Cc0331B616, tokensToBurn);
> }
>
> return true;
> }
>
> function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
> require(spender != address(0));
> _allowed[msg.sender][spender] = (_allowed[msg.sender][spender].add(addedValue));
> emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
> return true;
> }
>
> function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
> require(spender != address(0));
> _allowed[msg.sender][spender] = (_allowed[msg.sender][spender].sub(subtractedValue));
> emit Approval(msg.sender, spender, _allowed[msg.sender][spender]);
> return true;
> }
>
> function _mint(address account, uint256 amount) internal {
> require(amount != 0);
> _balances[account] = _balances[account].add(amount);
> emit Transfer(address(0), account, amount);
> }
>
> function burn(uint256 amount) external {
> _burn(msg.sender, amount);
> }
>
> function _burn(address account, uint256 amount) internal {
> require(amount != 0);
> require(amount <= _balances[account]);
> _totalSupply = _totalSupply.sub(amount);
> _balances[account] = _balances[account].sub(amount);
> emit Transfer(account, address(0), amount);
> }
>
> function burnFrom(address account, uint256 amount) external {
> require(amount <= _allowed[account][msg.sender]);
> _allowed[account][msg.sender] = _allowed[account][msg.sender].sub(amount);
> _burn(account, amount);
> }
> }