Preventing a costs from being added when a certain number is reached on Javascript

So I have this code, it shows the total in orange whenever the totalBillCost exceeds warningLevel and shows it in red whenever the totalBillCost exceeds criticalLevel.

But I also want it to prevent costs from being added whenever the totalBillCost is greater or equal to critalLevel. Please help me with that.

PS: let me know if I should post my other functions for understanding.

function totalColor(totalBillCost){
    total.classList.remove("danger");
    total.classList.remove("warning");

    if(totalBillCost >= warningLevel && totalBillCost < criticalLevel){
        total.classList.add("warning");
    }else if(totalBillCost >= criticalLevel){
        total.classList.add("danger");
    }

}