Untitled

<!doctype html>

<head>

</head>

<body>

  <input id="t" type='text' onkeydown="getInput()" onkeyup="setInput()" placeholder="0.00" value="0.00">

  </body>

  <script>
        let raw, semiRare, done;
        const t = document.getElementById('t');

        const getInput = () => {
          setTimeout(() => {
            raw = Number(t.value);
            semiRare = raw * 100;
          }, 1)
        }
        const setInput = () => {
          semiRare /= 10;
          done = semiRare.toFixed(2).toString();
          t.value = done;
        };
          </script>


</html>