title: code always returning NAN
body: <p>I am currently taking an intro to coding class and we are working with JS. My code is good but I am missing something because for the discount outputs I always get NAN. Does anyone know why this is happening?</p>
  
  <pre><code>//Input
  var orderAmount = prompt("What is the order amount?");
  var contractor = prompt("Are you a contractor? yes/no?");
  var employee = prompt("Are you an employee? yes/no?");
  var age = prompt("How old are you?");
  //Constant
  var employeeDisc = .10;
  var largeOrderDisc = .05;
  var contractorDisc = .20;
  var taxRate = .08;
  var noTax = 0;
  //Calculations
      if (orderAmount &gt;= 800) {
          var discounta = orderAmount * largeOrderdisc;
      }else {
          var discounta = 0;
      }
      if (contractor == "yes") {
          var discountc = orderAmount * contractorDisc;
      }else if(contractor == "no") {
          var discountc = 0;
      }
      if(employee == "yes") {
          var discounte = orderAmount * employeeDisc;
      }else if(emplyee == "no") {
          var discounte = 0;
      }
  var discount = discountc + discounte + discounta;
  var subtotal = orderAmount - discount;
      if (age &gt;= 90){
          tax = subtotal * noTax;
      }else {
          tax = subtotal * taxRate;
      }
  total = subtotal - tax;
  //Output
  document.write("Original Price: $" + orderAmount);
  document.write("Discount: $" + discount);
  document.write("Subtotal: $" + orderAmount);
  document.write("Tax: $" + tax);
  document.write("Final Price: $" + total);
  document.write("Final Price: $" + total);
  </code></pre>
  
  <p>Sorry about the code not compiling. It is now fixed. The issue now is that my document.write are not writing. </p>