Give the subtotal fields an additional CSS class named subtotal. Then you can use something like

$(document).ready(function () {
  
  $(document).on('blur change', '.subtotal input', calcscore);
  
  function calcscore() {
    var s = (parseNumber($('.professionalSubtotal input').val()) * .67) + (parseNumber($('.achievementSubtotal input').val()) * .33);
    $('.teacherScore input').val(s);
  }
  
  function parseNumber(n) {
    var f = parseFloat(n); //Convert to float number.
    return isNaN(f) ? 0 : f; //treat invalid input as 0;
  }
  
});