'Replace value in a span tag with percentage

i want the value of e to be a percentage. If value of e is 30 i want to display e as 1.5 that is 5% of 30. Below is the function and html that displays e, thanks for your help.


    function g(e) {
        p = e;
        for (var t = document.getElementsByClassName("aaz"), n = 0; n < t.length; n++) 
        t[n].textContent = e
    }
    
    <span class="aaz">0</span>

I know there's something like this i can use but don't know how to use it "Math.round(e/100*5)"



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