diff --git a/README.md b/README.md
index c0d7d0b..d554d03 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,11 @@ Build calendar graphs with unlimited chart layers
 
 #### [Month](https://github.com/YGGverse/graph-php/blob/main/src/Calendar/Month.php)
 
-![yggverse-graph-php-example](https://github.com/YGGverse/graph-php/assets/108541346/bbac7626-1f0b-476c-b154-f8a6f2933530)
+![2 layers example](https://github.com/YGGverse/graph-php/blob/main/media/calendar/example-2-layers.png?raw=true)
 
-##### Examples
+##### Live examples
 
- * [YGGstate](https://github.com/YGGverse/YGGstate) - Yggdrasil Network Explorer
- * [HLState](https://github.com/YGGverse/HLState) -  Web Monitor for Half-Life Servers
+ * [http://94.140.114.241/yggstate](http://94.140.114.241/yggstate)
 
 ##### Usage
 
@@ -59,4 +58,4 @@ To make your own implementation, play with:
 var_dump(
   $calendarMonth->getNodes()
 );
-```
+```
\ No newline at end of file
diff --git a/media/calendar/example-2-layers.png b/media/calendar/example-2-layers.png
new file mode 100644
index 0000000..9a5491c
Binary files /dev/null and b/media/calendar/example-2-layers.png differ
diff --git a/src/Calendar/Month.php b/src/Calendar/Month.php
index 9a0bacf..fa19207 100644
--- a/src/Calendar/Month.php
+++ b/src/Calendar/Month.php
@@ -35,19 +35,18 @@ class Month
 
   public function getNodes() : object
   {
-    // Calculate max value
-    $max = 0;
+    // Calculate month totals
+    $total = [];
 
     foreach ($this->_node as $i => $day)
     {
       foreach ($day as $l => $layer)
       {
+        $total[$i][$l] = 0;
+
         foreach ($layer as $data)
         {
-          if ($data['value'] > $max)
-          {
-            $max = $data['value'];
-          }
+          $total[$i][$l] += $data['value'];
         }
       }
     }
@@ -67,8 +66,8 @@ class Month
         // Calculate column width, height, offset
         foreach ($layer as $j => $data)
         {
-          $this->_node[$i][$l][$j]['height'] = $max ? ceil($data['value'] / $max * 100) : 0;
           $this->_node[$i][$l][$j]['width']  = $width;
+          $this->_node[$i][$l][$j]['height'] = $total[$i][$l] ? ceil($data['value'] / $total[$i][$l] * 100) : 0;
           $this->_node[$i][$l][$j]['offset'] = $width * $j;
         }
       }