woocommerce update price by quantity

<div id="totals"> </div>
<script>
window.onkeyup = keyup;
var quantity;
var ep = 99
var vpe = 10
function keyup(e) {
  input = e.target.value;
  parseInt(quantity);
  parseInt(base);
  var price = quantity * ep;
  var pieces = quantity * vpe;
  console.log(price);
  console.log(quantity);
  console.log(ep);
  console.log(pieces);
  console.log("Total Price: $" + price + ",00");
  console.log("Amount Items: " + pieces);
  document.getElementById("totals").innerHTML += "Items Total: " + pieces + “
 Price Total: $" + price + “
";
}
</script>