anchor.diff:      $('#payment #coin').val($(this).val() * EXCHANGE);
   });
   
  -$('#deposit #coin').on('input', function() {
  -    $('#deposit #baht').val($(this).val() / EXCHANGE);
  +$('#withdraw #coin').on('input', function() {
  +    $('#withdraw #baht').val($(this).val() / EXCHANGE);
   });
   </script>
   
  
positive.code:     <div class="col-sm-12" id="payment">
          <div class="panel panel-default">
              <div class="panel-heading">
                  <h3 class="panel-title">Withdraw</h3>
              </div>
              <div class="panel-body">
  
negative.code:                             <div class="form-group col-sm-6">
                                  <div class="input-group">
                                      <span class="input-group-addon">Coin</span>
                                      <input type="number" class="form-control" name="amount" id="coin">
                                  </div>
                              </div>
                              <div class="form-group col-sm-6">
                                  <div class="input-group">
                                      <span class="input-group-addon">฿</span>
                                      <input type="number" class="form-control" id="baht" disabled>
                                  </div>
                              </div>
                              <button type="submit" class="btn btn-success">Withdraw</button>
                          </form>
                      </div>
                  </div>
  