diff --git a/pages/spell.php b/pages/spell.php
index 94a927af..65ecab56 100644
--- a/pages/spell.php
+++ b/pages/spell.php
@@ -682,6 +682,7 @@ class SpellPage extends GenericPage
             $lv = $spellLoot->getResult();
             $extraCols   = $spellLoot->extraCols;
             $extraCols[] = '$Listview.extraCols.percent';
+            $lvName      = '$LANG.tab_contains';
 
             if ($extraItem && $this->subject->canCreateItem())
             {
@@ -691,8 +692,10 @@ class SpellPage extends GenericPage
                 {
                     if (($bar = $this->subject->getField('effect'.$i.'CreateItemId')) && isset($foo[$bar]))
                     {
+                        $lvName = '$LANG.tab_bonusloot';
                         $lv[$bar] = $foo[$bar];
-                        $lv[$bar]['percent'] = $extraItem['additionalCreateChance'];
+                        $lv[$bar]['percent']  = $extraItem['additionalCreateChance'];
+                        $lv[$bar]['pctstack'] = $this->buildPctStack($extraItem['additionalCreateChance'] / 100, $extraItem['additionalMaxNum']);
                         $lv[$bar]['condition'][0][$this->typeId][] = [[CND_SPELL, $extraItem['requiredSpecialization']]];
                         $this->extendGlobalIds(Type::SPELL, $extraItem['requiredSpecialization']);
                         $extraCols[] = '$Listview.extraCols.condition';
@@ -706,7 +709,7 @@ class SpellPage extends GenericPage
 
             $this->lvTabs[] = [ItemList::$brickFile, array(
                 'data'       => array_values($lv),
-                'name'       => '$LANG.tab_contains',
+                'name'       => $lvName,
                 'id'         => 'contains',
                 'hiddenCols' => ['side', 'slot', 'source', 'reqlevel'],
                 'extraCols'  => array_unique($extraCols)
@@ -1244,6 +1247,27 @@ class SpellPage extends GenericPage
         return sprintf($this->powerTpl, $this->typeId, User::$localeId, Util::toJSON($power, JSON_AOWOW_POWER));
     }
 
+    private function buildPctStack(float $baseChance, int $maxStack) : string
+    {
+        // note: pctStack does not contain absolute values but chances relative to the overall drop chance
+        // e.g.: dropChance is 17% then [1 => 50, 2 => 25, 3 => 25] displays > Stack of 1: 8%; Stack of 2: 4%; Stack of 3: 4%
+        $maxStack = $maxStack ?: 1;
+        $pctStack = [];
+        for ($i = 1; $i <= $maxStack; $i++)
+        {
+            $pctStack[$i] = (($baseChance ** $i) * 100) / $baseChance ;
+
+            // remove chance from previous stacks
+            for ($j = 1; $j < $i; $j++)
+                $pctStack[$j] -= ($pctStack[$i] / ($i - 1));
+        }
+
+        // cleanup tiny fractions
+        $pctStack = array_filter($pctStack, function($x) use ($baseChance) { return $x * $baseChance >= 0.01; });
+
+        return json_encode($pctStack, JSON_NUMERIC_CHECK);
+    }
+
     private function appendReagentItem(&$reagentResult, $_iId, $_qty, $_mult, $_level, $_path, $alreadyUsed)
     {
         if (in_array($_iId, $alreadyUsed))
diff --git a/static/js/locale_dede.js b/static/js/locale_dede.js
index beb6b531..7545a8e7 100644
--- a/static/js/locale_dede.js
+++ b/static/js/locale_dede.js
@@ -3176,6 +3176,7 @@ var LANG = {
     tab_weaponskills:        "Waffenfertigkeit",
     tab_world:               "Welt",
     tab_zones:               "Gebiete",
+    tab_bonusloot:           "Bonusbeute",                  // aowow - custom from BONUS_LOOT_LABEL
 
     numberofupvotesreceived_tip: "Anzahl von positiven Bewertungen erhalten",
     deletethisreply_stc:         "Antwort löschen",
diff --git a/static/js/locale_enus.js b/static/js/locale_enus.js
index a6cc5434..d73d08a9 100644
--- a/static/js/locale_enus.js
+++ b/static/js/locale_enus.js
@@ -3225,6 +3225,7 @@ var LANG = {
     tab_weaponskills:        "Weapon Skills",
     tab_world:               "World",
     tab_zones:               "Zones",
+    tab_bonusloot:           "Bonus Loot",                  // aowow - custom from BONUS_LOOT_LABEL
 
     numberofupvotesreceived_tip: "Number of upvotes received",
     deletethisreply_stc:         "Delete this reply",
diff --git a/static/js/locale_eses.js b/static/js/locale_eses.js
index f27652f9..edb956cf 100644
--- a/static/js/locale_eses.js
+++ b/static/js/locale_eses.js
@@ -3176,6 +3176,7 @@ var LANG = {
     tab_weaponskills:        "Habilidades con armas",
     tab_world:               "Mundo",
     tab_zones:               "Zonas",
+    tab_bonusloot:           "Bonus de botín",              // aowow - custom from BONUS_LOOT_LABEL
 
     numberofupvotesreceived_tip: "Número de valoraciones positivas recibidas ",
     deletethisreply_stc:         "Borrar esta respuesta",
diff --git a/static/js/locale_frfr.js b/static/js/locale_frfr.js
index 14fe9c52..a95a006a 100644
--- a/static/js/locale_frfr.js
+++ b/static/js/locale_frfr.js
@@ -3177,6 +3177,7 @@ var LANG = {
     tab_weaponskills:        "Compétences d'armes",
     tab_world:               "Monde",
     tab_zones:               "Zones",
+    tab_bonusloot:           "Butin bonus",                 // aowow - custom from BONUS_LOOT_LABEL
 
     numberofupvotesreceived_tip: "Nombre de votes positifs reçus",
     deletethisreply_stc:         "Effacer cette réponse",
diff --git a/static/js/locale_ruru.js b/static/js/locale_ruru.js
index fab148e2..71537c5f 100644
--- a/static/js/locale_ruru.js
+++ b/static/js/locale_ruru.js
@@ -3177,6 +3177,7 @@ var LANG = {
     tab_weaponskills:        "Оружейные навыки",
     tab_world:               "Игровой мир",
     tab_zones:               "Местности",
+    tab_bonusloot:           "Доп. добыча",                 // aowow - custom from BONUS_LOOT_LABEL
 
     numberofupvotesreceived_tip: "Голосов получено",
     deletethisreply_stc:         "Удалить этот ответ",
diff --git a/static/js/locale_zhcn.js b/static/js/locale_zhcn.js
index a764949b..610ae33d 100644
--- a/static/js/locale_zhcn.js
+++ b/static/js/locale_zhcn.js
@@ -3224,6 +3224,7 @@ var LANG = {
     tab_weaponskills:         "武器技能",
     tab_world:                "世界",
     tab_zones:                "地区",
+    tab_bonusloot:            "奖励战利品",                      // aowow - custom from BONUS_LOOT_LABEL
 
     numberofupvotesreceived_tip: "收到顶票数量",
     deletethisreply_stc:         "删除本评论",