diff --git a/hwe/a_genList.php b/hwe/a_genList.php
index 7181eb01..7551178c 100644
--- a/hwe/a_genList.php
+++ b/hwe/a_genList.php
@@ -163,7 +163,7 @@ foreach($generalList as $general){
         $name = $name.'<br><small>('.$ownerNameList[$general['owner']].')</small>';
     }
 
-    $general['connect'] = Util::round($general['connect'] / 10) * 10;
+    $general['connect'] = Util::round($general['connect'], -1);
 
     $imageTemp = GetImageURL($general['imgsvr']);
     echo "
diff --git a/hwe/c_auction.php b/hwe/c_auction.php
index 3c49ba74..6ca1ed40 100644
--- a/hwe/c_auction.php
+++ b/hwe/c_auction.php
@@ -46,10 +46,10 @@ $btCount = $tradeCount + $bidCount;
 
 $unit = $turnterm * 60;
 
-$amount = Util::round($amount / 10) * 10;
-$cost = Util::round($cost / 10) * 10;
-$topv = Util::round($topv / 10) * 10;
-$value = Util::round($value / 10) * 10;
+$amount = Util::round($amount, -1);
+$cost = Util::round($cost, -1);
+$topv = Util::round($topv, -1);
+$value = Util::round($value, -1);
 if ($term > 24) {
     $term = 24;
 }
diff --git a/hwe/func_auction.php b/hwe/func_auction.php
index 06719dfb..7812acae 100644
--- a/hwe/func_auction.php
+++ b/hwe/func_auction.php
@@ -32,9 +32,9 @@ function registerAuction() {
         if($cost <= $amount*0.8) { $cost = $amount*0.8; }
         if($cost >= $amount*1.2) { $cost = $amount*1.2; }
 
-        $amount = Util::round($amount / 10) * 10;
-        $cost = Util::round($cost / 10) * 10;
-        $topv = Util::round($topv / 10) * 10;
+        $amount = Util::round($amount, -1);
+        $cost = Util::round($cost, -1);
+        $topv = Util::round($topv, -1);
 
         $term = 3 + rand() % 10;
         $date = date("Y-m-d H:i:s", strtotime(date("Y-m-d H:i:s")) + $unit * $term);
@@ -54,9 +54,9 @@ function registerAuction() {
         if($cost <= $amount*0.8) { $cost = $amount*0.8; }
         if($cost >= $amount*1.2) { $cost = $amount*1.2; }
 
-        $amount = Util::round($amount / 10) * 10;
-        $cost = Util::round($cost / 10) * 10;
-        $topv = Util::round($topv / 10) * 10;
+        $amount = Util::round($amount, -1);
+        $cost = Util::round($cost, -1);
+        $topv = Util::round($topv, -1);
 
         $term = 3 + rand() % 10;
         $date = date("Y-m-d H:i:s", strtotime(date("Y-m-d H:i:s")) + $unit * $term);
diff --git a/hwe/sammo/GeneralAI.php b/hwe/sammo/GeneralAI.php
index 2b1b0b3a..7d836aaa 100644
--- a/hwe/sammo/GeneralAI.php
+++ b/hwe/sammo/GeneralAI.php
@@ -740,7 +740,7 @@ class GeneralAI{
     
             if($targetGeneral){
                 if($targetGeneral === $compNpcCivil){
-                    $amount = round($targetGeneral->$resName - $minRes * 3, -2);
+                    $amount = Util::round($targetGeneral->$resName - $minRes * 3, -2);
                 }
                 else{
                     $amount = min(10000, intdiv($targetGeneral->$resName, 5000)*1000 + 1000);
diff --git a/src/sammo/Util.php b/src/sammo/Util.php
index df065ebb..b41cca86 100644
--- a/src/sammo/Util.php
+++ b/src/sammo/Util.php
@@ -7,17 +7,20 @@ class Util extends \utilphp\util
     /**
      * int 값 반환을 강제하는 부동소수점 반올림
      * @param int|float $value
+     * @param int       $pos    반올림 자리수, 0 이하의 '음수만'
      */
-    public static function round($value) : int{
-        return intval(round($value));
+    public static function round($value, $pos=0) : int{
+        assert($pos <= 0, 'Util::round는 음수만 입력 가능');
+        return intval(round($value, $pos));
     }
 
     /**
      * int 값으로 강제로 설정하는 부동소수점 반올림
      * @param int|float $value
+     * @param int       $pos    반올림 자리수, 0 이하의 '음수만'
      */
-    public static function setRound(&$value) : void{
-        $value = static::round($value);
+    public static function setRound(&$value, $pos=0) : void{
+        $value = static::round($value, $pos);
     }
 
     private static function _parseReq($value, string $type)