diff --git a/src/Mapping/Operator/Factory/Numeric.php b/src/Mapping/Operator/Factory/Numeric.php
index 13446b7..a0a7db7 100644
--- a/src/Mapping/Operator/Factory/Numeric.php
+++ b/src/Mapping/Operator/Factory/Numeric.php
@@ -35,11 +35,13 @@ public function process($inputData, bool $dryRun = false)
             $inputData = reset($inputData);
         }
 
-        if ($this->returnNullIfEmpty && empty($inputData)) {
+        $floatValue = floatval($inputData);
+
+        if ($this->returnNullIfEmpty && empty($floatValue)) {
             return null;
         }
 
-        return floatval($inputData);
+        return $floatValue;
     }
 
     /**