function calcMultiplier() public view returns (uint) {

        if (totalInvested <= 50 ether) {
            return 110;
        } else if (totalInvested <= 100 ether) {
            return 113;
        } else if (totalInvested <= 150 ether) {
            return 116;
        } else if (totalInvested <= 200 ether) {
            return 119;
		} else if (totalInvested <= 250 ether) {
            return 122;
		} else if (totalInvested <= 300 ether) {
            return 125;
		} else if (totalInvested <= 350 ether) {
            return 128;
		} else if (totalInvested <= 500 ether) {
            return 129;
        } else {
            return 130;
        }

    }