Index: /mods/wpsg_mod_fuellmenge.class.php
===================================================================
--- /mods/wpsg_mod_fuellmenge.class.php	(revision 7653)
+++ /mods/wpsg_mod_fuellmenge.class.php	(revision 7654)
@@ -289,6 +289,5 @@
 			
 			if ($fmenge_details !== '1') {
-				
-				$conversionvalue = 1;
+				 
 				$referencevalue = $this->shop->get_option('wpsg_mod_fuellmenge_bezug');
 				$referenceunit = $feinheit;
@@ -296,6 +295,8 @@
 			}
 			
+			if ($conversionvalue <= 0) $conversionvalue = 1;
+						
 			// Umrechnung
-			$fmenge_reference = $fmenge  / $conversionvalue;
+			$fmenge_reference = ($fmenge * $referencevalue) / $conversionvalue;
 			
 			if ($fmenge_reference <= 0) $reference_price = 0;