Click counter that can start at any value?

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Javascript

HTML

(I've posted the same exact question but with Little information, I am posting another one as I couldn't find the option to edit my question)
I've seen tutorials on click counter that adds a number whenever you click a button, but all of them start at 0, what I'm asking is a click counter that can start at maybe .000, or .000000 something like that. I've tried to improvise as many times as I could, Ive reread tutorials on JavaScript, but I just can't do it.
Again, simplifying what I want...
A button, that when click will increase the value of a given number (eg.0.00) by a given number (eg.0.001)
Eg
No click
0.00
One click
0.01
Two click
0.02
Three click
0.03

What I have tried:

<h3><center>JavaScript Click Counter</center></h3>
<div>
    <center><h3 id="counter-label">0</h3></center>
</div>
<center>
    <div>
        Click Me
        Reset
    </div>
</center>

var counterVal = 0.00;

function incrementClick() {
    updateDisplay(++counterVal);
}

function resetCounter() {
    counterVal = 0.00;
    updateDisplay(counterVal);
}

function updateDisplay(val) {
    document.getElementById("counter-label").innerHTML = val;
}