diff --git a/src/Engine.php b/src/Engine.php
index 531a4d5..dd9262e 100644
--- a/src/Engine.php
+++ b/src/Engine.php
@@ -55,6 +55,8 @@ class Engine
     /** @var \SimpleXMLElement $templates */
     protected $templates;
 
+    protected $savedCalcValues = [];
+
     /**
      * Load XML From String
      *
@@ -217,6 +219,8 @@ class Engine
         // Prefill with defaults
         /** @var Base $option */
         foreach($this->article->getOptions() as $option) {
+            $option->setSavedCalcValues($this->savedCalcValues);
+
             if(!isset($this->variables[$option->getId()]) && $option->getDefault() !== null && !$option instanceof Text) {
                 $this->variables[$option->getId()] = $option->getDefault();
             }
@@ -381,4 +385,8 @@ class Engine
         return $this->templates;
     }
 
+    public function setSavedCalcReferences($values)
+    {
+        $this->savedCalcValues = $values;
+    }
 }
\ No newline at end of file
diff --git a/src/Option/Type/Base.php b/src/Option/Type/Base.php
index f28e872..0a082d6 100644
--- a/src/Option/Type/Base.php
+++ b/src/Option/Type/Base.php
@@ -38,6 +38,7 @@ class Base
     /** @var bool */
     protected $isAjaxExport = false;
 
+    protected $savedCalcValues = [];
 
     public function __construct()
     {
@@ -232,4 +233,20 @@ class Base
     {
         return $variables;
     }
+
+    /**
+     * @return array
+     */
+    public function getSavedCalcValues()
+    {
+        return $this->savedCalcValues;
+    }
+
+    /**
+     * @param array $savedCalcValues
+     */
+    public function setSavedCalcValues($savedCalcValues)
+    {
+        $this->savedCalcValues = $savedCalcValues;
+    }
 }
\ No newline at end of file
diff --git a/src/Option/Type/PaperDbSelect.php b/src/Option/Type/PaperDbSelect.php
index cfb10a5..e5dc2d6 100644
--- a/src/Option/Type/PaperDbSelect.php
+++ b/src/Option/Type/PaperDbSelect.php
@@ -7,12 +7,42 @@ use PSC\Library\Calc\Tests\Mock\Paper;
 
 class PaperDbSelect extends Select
 {
+    public function getSelectedOption()
+    {
+        /** @var Opt $opt */
+        foreach($this->getOptions() as $opt) {
+            if($opt->isSelected()) return $opt;
+        }
+
+        if(isset($this->savedCalcValues[$this->getId()]) && $this->savedCalcValues[$this->getId()]['art_nr'] == $this->getRawValue()) {
+            $opt = new PaperOpt();
+            $opt->setIsSelected(true);
+            $opt->setId($this->savedCalcValues[$this->getId()]['art_nr']);
+            $opt->setLabel($this->savedCalcValues[$this->getId()]['description_1']);
+
+            $paper = new Paper();
+            $paper->setId($this->savedCalcValues[$this->getId()]['id']);
+            $paper->setArtNr($this->savedCalcValues[$this->getId()]['art_nr']);
+            $paper->setDescription1($this->savedCalcValues[$this->getId()]['description_1']);
+            $paper->setDescription2($this->savedCalcValues[$this->getId()]['description_2']);
+            $paper->setPreis($this->savedCalcValues[$this->getId()]['preis']);
+            $paper->setGrammatur($this->savedCalcValues[$this->getId()]['grammatur']);
+            $paper->setOffsetFix($this->savedCalcValues[$this->getId()]['offset_fix']);
+            $paper->setOffsetVar($this->savedCalcValues[$this->getId()]['offset_var']);
+            $paper->setDigitalFix($this->savedCalcValues[$this->getId()]['digital_fix']);
+            $paper->setDigitalVar($this->savedCalcValues[$this->getId()]['digital_var']);
+            $paper->setVolume($this->savedCalcValues[$this->getId()]['volume']);
+
+            $opt->setPaper($paper);
+
+            return $opt;
+        }
+    }
 
     public function parseAdditionalValues($variables)
     {
         /** @var PaperOpt $option */
         $option = $this->getSelectedOption();
-
         if($option == null) {
 
             $variables[$this->getId() . '_grammatur'] = 0;
diff --git a/tests/Complex/PaperSavedTest.php b/tests/Complex/PaperSavedTest.php
new file mode 100644
index 0000000..77ad138
--- /dev/null
+++ b/tests/Complex/PaperSavedTest.php
@@ -0,0 +1,56 @@
+<?php
+namespace PSC\Library\Calc\Tests\Complex;
+
+
+
+use PSC\Library\Calc\Article;
+use PSC\Library\Calc\Engine;
+use PSC\Library\Calc\PaperContainer;
+use PSC\Library\Calc\Tests\Mock\PaperRepostory;
+
+class PaperSavedTest extends \PHPUnit_Framework_TestCase
+{
+
+    /** @var Engine */
+    protected $engine = null;
+
+    public function setUp()
+    {
+        $repository = new PaperRepostory();
+
+        $paperContainer = new PaperContainer();
+        $paperContainer->parse(simplexml_load_string(file_get_contents(__DIR__ . '/../TestFiles/Complex/papierContainer.xml')));
+
+        $this->engine = new Engine();
+        $this->engine->setPaperContainer($paperContainer);
+        $this->engine->setPaperRepository($repository);
+        $this->engine->setFormulas(file_get_contents(__DIR__.'/../TestFiles/Complex/formels.txt'));
+        $this->engine->setParameters(file_get_contents(__DIR__.'/../TestFiles/Complex/parameters.txt'));
+
+        $this->engine->loadString(file_get_contents(__DIR__ . '/../TestFiles/Complex/1.xml'));
+
+    }
+
+    public function tearDown()
+    {
+        $this->engine = null;
+    }
+
+    public function testIfArticleCountIsCorrect()
+    {
+        $this->assertEquals(1, $this->engine->getArticles()->Count());
+    }
+
+    public function testIfDefaultPriceIsOk()
+    {
+        $this->engine->setVariable('papier', 'INM137');
+
+        $this->engine->setSavedCalcReferences([ "papier" =>
+            [ "id" => "5039", "install_id" => "1", "uuid" => "0001-00000000-4bfaf9c3-7158-bce189cb",
+            "art_nr" => "INM137", "description_1" => "Bilderdruck matt 250 gr",
+            "description_2" => "Bilderdruck matt 135 gr", "grammatur" => "135", "preis" => "28",
+            "offset_fix" => "0", "offset_var" => "0", "digital_fix" => "0", "digital_var" => "0", "volume" => "0.118" ] ]);
+
+        $this->assertEquals(162.19, $this->engine->getPrice());
+    }
+}
\ No newline at end of file
diff --git a/tests/Legacy/selectWithGrenzenTest.php b/tests/Legacy/selectWithGrenzenTest.php
index 6d20532..3d006fe 100644
--- a/tests/Legacy/selectWithGrenzenTest.php
+++ b/tests/Legacy/selectWithGrenzenTest.php
@@ -50,6 +50,8 @@ class selectWithGrenzenTest extends \PHPUnit_Framework_TestCase
         $this->assertCount(6, $article->getValidOptions());
 
         $this->assertCount(6, $article->getOptionsAsArray());
+
+        $this->assertInstanceOf('\PSC\Library\Calc\Option\Type\Select\Opt', $article->getOptionById('umschlag')->getSelectedOption());
     }
 
 }
diff --git a/tests/TestFiles/General/complete1.xml b/tests/TestFiles/General/complete1.xml
index 756ca7b..55f1ca7 100644
--- a/tests/TestFiles/General/complete1.xml
+++ b/tests/TestFiles/General/complete1.xml
@@ -19,7 +19,7 @@
         <option id="t30" name="" type="Text" default="Bitte geben Sie den Neuwert Ihres Gebäudes/Ihrer Gebäude ein (in Euro gerundet auf Tsd.)"></option>
         <option id="gebwert" name="" type="Input" default="0" require="true" hidden="false">
             <gebyn>
-                <grenze formel="$Vgebwert$V/1000*0.906">1</grenze>
+                <grenze formel="tonumber($Vgebwert$V/1000*0.906)">1</grenze>
                 <grenze formel="">2</grenze>
             </gebyn>
         </option>