diff --git a/src/Darryldecode/Cart/Cart.php b/src/Darryldecode/Cart/Cart.php
index b582dca..781f361 100644
--- a/src/Darryldecode/Cart/Cart.php
+++ b/src/Darryldecode/Cart/Cart.php
@@ -788,7 +788,7 @@ protected function itemHasConditions($item)
     protected function updateQuantityRelative($item, $key, $value)
     {
         if (preg_match('/\-/', $value) == 1) {
-            $value = (int)str_replace('-', '', $value);
+            $value = ($this->config['dec_quantity']) ? (float)str_replace('-', '', $value) : (int)str_replace('-', '', $value);
 
             // we will not allowed to reduced quantity to 0, so if the given value
             // would result to item quantity of 0, we will not do it.
@@ -796,9 +796,9 @@ protected function updateQuantityRelative($item, $key, $value)
                 $item[$key] -= $value;
             }
         } elseif (preg_match('/\+/', $value) == 1) {
-            $item[$key] += (int)str_replace('+', '', $value);
+            $item[$key] += ($this->config['dec_quantity']) ? (float)str_replace('+', '', $value) : (int)str_replace('+', '', $value);
         } else {
-            $item[$key] += (int)$value;
+            $item[$key] += ($this->config['dec_quantity']) ? (float)$value : (int)$value;
         }
 
         return $item;
@@ -814,8 +814,7 @@ protected function updateQuantityRelative($item, $key, $value)
      */
     protected function updateQuantityNotRelative($item, $key, $value)
     {
-        $item[$key] = (int)$value;
-
+        $item[$key] = ($this->config['dec_quantity']) ? (float)$value : (int)$value;
         return $item;
     }
 
diff --git a/src/Darryldecode/Cart/config/config.php b/src/Darryldecode/Cart/config/config.php
index 985b250..8d93671 100644
--- a/src/Darryldecode/Cart/config/config.php
+++ b/src/Darryldecode/Cart/config/config.php
@@ -16,6 +16,8 @@
 
     'thousands_sep' => env('SHOPPING_THOUSANDS_SEP', ','),
 
+    'dec_quantity' => env('SHOPPING_ALLOW_DECIMAL_QUANTITY', false),
+
     /*
      * ---------------------------------------------------------------
      * persistence
@@ -33,4 +35,4 @@
      * the configuration for cart events
      */
     'events' => null,
-];
\ No newline at end of file
+];