diff --git a/webapp/services/FormulaService.php b/webapp/services/FormulaService.php
index cd072011..e02b889c 100644
--- a/webapp/services/FormulaService.php
+++ b/webapp/services/FormulaService.php
@@ -53,7 +53,7 @@ class FormulaService extends BaseService {
              (0.8 - ($instanceRank - 1) * 0.25 + $bossReward * 0.2) *
              1/10;
 
-        return 0;
+        return round(ceg);
     }
 
     public static function calcWeaponPvpCeg($weaponDto, $params)
@@ -83,9 +83,17 @@ class FormulaService extends BaseService {
         return round($ceg);
     }
 
-    public static function calcWeaponPveCeg($weaponDb)
+    public static function calcWeaponPveCeg($weaponDb, $instanceLevel, $instanceRank, $bossReward)
     {
-        return 0;
+        $upLimit = $weaponDto['pve_ceg_uplimit'];
+        $weaponQuality = $weaponDto['quality'];
+
+        $ceg = $upLimit *
+             max(1.15 - ($weaponQuality - $instanceLevel) * 0.25, 0) *
+             (0.8 - ($instanceRank - 1) * 0.25 + $bossReward * 0.2) *
+             1/10;
+
+        return round(ceg);
     }
 
     public static function getHeroPvpTiliTotalValue($heroDb)