Why is another else if statment running javascript

So I am working on a loan calculator in JavaScript. So I keep running into this problem to where when a user enters a number for above 400 but below 500 it will not run that if statement but instead it will run the other else if statement where if a number is above 500 and below 640. The following code I am talking about is down below. Any help will be appreciated.

else if (500 < getCredit < 640){
        alert("This is it");
        score += 6
        console.log("The score is " + score);
    }

    else if (400 < getCredit < 500) {
        score += 0 // The else if statement above is executed and not this  one whenever conditions are met
    }

Below is the rest of code Js code

    function myFunction() {

    score = 0;

    var getCredit = parseInt(document.getElementById("credit").value);
    if(getCredit > 640){
        score += 12
        console.log("The score is " + score);// This is working the right way
    }

    else if (500 < getCredit < 640){
        alert("I learned something at Mathnasium");
        score += 6
        console.log("The score is " + score);
    }

    else if (400 < getCredit < 500) {
        score += 0
    }
}