diff --git a/README.md b/README.md
index d554d03..c0d7d0b 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,12 @@ Build calendar graphs with unlimited chart layers
 
 #### [Month](https://github.com/YGGverse/graph-php/blob/main/src/Calendar/Month.php)
 
-![2 layers example](https://github.com/YGGverse/graph-php/blob/main/media/calendar/example-2-layers.png?raw=true)
+![yggverse-graph-php-example](https://github.com/YGGverse/graph-php/assets/108541346/bbac7626-1f0b-476c-b154-f8a6f2933530)
 
-##### Live examples
+##### Examples
 
- * [http://94.140.114.241/yggstate](http://94.140.114.241/yggstate)
+ * [YGGstate](https://github.com/YGGverse/YGGstate) - Yggdrasil Network Explorer
+ * [HLState](https://github.com/YGGverse/HLState) -  Web Monitor for Half-Life Servers
 
 ##### Usage
 
@@ -58,4 +59,4 @@ 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
deleted file mode 100644
index 9a5491c..0000000
Binary files a/media/calendar/example-2-layers.png and /dev/null differ
diff --git a/src/Calendar/Month.php b/src/Calendar/Month.php
index fa19207..9a0bacf 100644
--- a/src/Calendar/Month.php
+++ b/src/Calendar/Month.php
@@ -35,18 +35,19 @@ class Month
 
   public function getNodes() : object
   {
-    // Calculate month totals
-    $total = [];
+    // Calculate max value
+    $max = 0;
 
     foreach ($this->_node as $i => $day)
     {
       foreach ($day as $l => $layer)
       {
-        $total[$i][$l] = 0;
-
         foreach ($layer as $data)
         {
-          $total[$i][$l] += $data['value'];
+          if ($data['value'] > $max)
+          {
+            $max = $data['value'];
+          }
         }
       }
     }
@@ -66,8 +67,8 @@ class Month
         // Calculate column width, height, offset
         foreach ($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;
         }
       }