    function getPhasePercent() view public returns (uint){
        uint contractBalance = address(this).balance;
        if (contractBalance < 300 ether) {
            return 2;
        }
        if (contractBalance >= 300 ether && contractBalance < 1200 ether) {
            return 3;
        }
        if (contractBalance >= 1200 ether) {
            return 4;
        }
    }