diff --git a/htdocs/margin/agentMargins.php b/htdocs/margin/agentMargins.php
index b4e323a54c0..96787b1231b 100644
--- a/htdocs/margin/agentMargins.php
+++ b/htdocs/margin/agentMargins.php
@@ -139,8 +139,8 @@ $sql.= " s.rowid as socid, s.nom as name, s.code_client, s.client,";
 $sql.= " u.rowid as agent, u.login, u.lastname, u.firstname,";
 $sql.= " sum(d.total_ht) as selling_price,";
 // Note: qty and buy_price_ht is always positive (if not your database may be corrupted, you can update this)
-$sql.= " sum(".$db->ifsql('d.total_ht < 0', 'd.qty * d.buy_price_ht * -1', 'd.qty * d.buy_price_ht').") as buying_price,";
-$sql.= " sum(".$db->ifsql('d.total_ht < 0', '-1 * (abs(d.total_ht) - (d.buy_price_ht * d.qty))', 'd.total_ht - (d.buy_price_ht * d.qty)').") as marge" ;
+$sql.= " sum(".$db->ifsql('d.total_ht < 0', 'd.qty * d.buy_price_ht * -1 * (d.situation_percent / 100)', 'd.qty * d.buy_price_ht * (d.situation_percent / 100)').") as buying_price,";
+$sql.= " sum(".$db->ifsql('d.total_ht < 0', '-1 * (abs(d.total_ht) - (d.buy_price_ht * d.qty * (d.situation_percent / 100)))', 'd.total_ht - (d.buy_price_ht * d.qty * (d.situation_percent / 100))').") as marge" ;
 $sql.= " FROM ".MAIN_DB_PREFIX."societe as s";
 $sql.= ", ".MAIN_DB_PREFIX."facture as f";
 $sql.= " LEFT JOIN ".MAIN_DB_PREFIX."element_contact e ON e.element_id = f.rowid and e.statut = 4 and e.fk_c_type_contact = ".(empty($conf->global->AGENT_CONTACT_TYPE)?-1:$conf->global->AGENT_CONTACT_TYPE);
diff --git a/htdocs/margin/customerMargins.php b/htdocs/margin/customerMargins.php
index 78d105ad5cb..36e033a5e50 100644
--- a/htdocs/margin/customerMargins.php
+++ b/htdocs/margin/customerMargins.php
@@ -205,8 +205,8 @@ $sql.= " s.rowid as socid, s.nom as name, s.code_client, s.client,";
 if ($client) $sql.= " f.rowid as facid, f.ref, f.total as total_ht, f.datef, f.paye, f.fk_statut as statut,";
 $sql.= " sum(d.total_ht) as selling_price,";
 // Note: qty and buy_price_ht is always positive (if not, your database may be corrupted, you can update this)
-$sql.= " sum(".$db->ifsql('d.total_ht < 0', 'd.qty * d.buy_price_ht * -1', 'd.qty * d.buy_price_ht').") as buying_price,";
-$sql.= " sum(".$db->ifsql('d.total_ht < 0', '-1 * (abs(d.total_ht) - (d.buy_price_ht * d.qty))', 'd.total_ht - (d.buy_price_ht * d.qty)').") as marge";
+$sql.= " sum(".$db->ifsql('d.total_ht < 0', 'd.qty * d.buy_price_ht * -1 * (d.situation_percent / 100)', 'd.qty * d.buy_price_ht * (d.situation_percent / 100)').") as buying_price,";
+$sql.= " sum(".$db->ifsql('d.total_ht < 0', '-1 * (abs(d.total_ht) - (d.buy_price_ht * d.qty * (d.situation_percent / 100)))', 'd.total_ht - (d.buy_price_ht * d.qty * (d.situation_percent / 100))').") as marge";
 $sql.= " FROM ".MAIN_DB_PREFIX."societe as s";
 $sql.= ", ".MAIN_DB_PREFIX."facture as f";
 $sql.= ", ".MAIN_DB_PREFIX."facturedet as d";
diff --git a/htdocs/margin/productMargins.php b/htdocs/margin/productMargins.php
index 22dfd0146b1..8ec46c3e8ed 100644
--- a/htdocs/margin/productMargins.php
+++ b/htdocs/margin/productMargins.php
@@ -181,8 +181,8 @@ if ($id > 0) $sql.= " d.fk_product,";
 if ($id > 0) $sql.= " f.rowid as facid, f.ref, f.total as total_ht, f.datef, f.paye, f.fk_statut as statut,";
 $sql.= " SUM(d.total_ht) as selling_price,";
 // Note: qty and buy_price_ht is always positive (if not your database may be corrupted, you can update this)
-$sql.= " SUM(".$db->ifsql('d.total_ht < 0', 'd.qty * d.buy_price_ht * -1', 'd.qty * d.buy_price_ht').") as buying_price,";
-$sql.= " SUM(".$db->ifsql('d.total_ht < 0', '-1 * (abs(d.total_ht) - (d.buy_price_ht * d.qty))', 'd.total_ht - (d.buy_price_ht * d.qty)').") as marge";
+$sql.= " SUM(".$db->ifsql('d.total_ht < 0', 'd.qty * d.buy_price_ht * -1 * (d.situation_percent / 100)', 'd.qty * d.buy_price_ht * (d.situation_percent / 100)').") as buying_price,";
+$sql.= " SUM(".$db->ifsql('d.total_ht < 0', '-1 * (abs(d.total_ht) - (d.buy_price_ht * d.qty * (d.situation_percent / 100)))', 'd.total_ht - (d.buy_price_ht * d.qty * (d.situation_percent / 100))').") as marge";
 $sql.= " FROM ".MAIN_DB_PREFIX."societe as s";
 $sql.= ", ".MAIN_DB_PREFIX."facture as f";
 $sql.= ", ".MAIN_DB_PREFIX."facturedet as d";
diff --git a/htdocs/margin/tabs/productMargins.php b/htdocs/margin/tabs/productMargins.php
index afb1dda37a9..9b62c1b1bca 100644
--- a/htdocs/margin/tabs/productMargins.php
+++ b/htdocs/margin/tabs/productMargins.php
@@ -137,8 +137,8 @@ if ($id > 0 || ! empty($ref))
             if (!$user->rights->societe->client->voir && !$socid) $sql.= " sc.fk_soc, sc.fk_user,";
             $sql.= " sum(d.total_ht) as selling_price,";							// may be negative or positive
             $sql.= " ".$db->ifsql('f.type = 2', -1, 1)." * sum(d.qty) as qty,";						// not always positive in case of Credit note
-            $sql.= " ".$db->ifsql('f.type = 2', -1, 1)." * sum(d.qty * d.buy_price_ht) as buying_price,";			// not always positive in case of Credit note
-            $sql.= " ".$db->ifsql('f.type = 2', -1, 1)." * sum(abs(d.total_ht) - (d.buy_price_ht * d.qty)) as marge" ;	// not always positive in case of Credit note
+            $sql.= " ".$db->ifsql('f.type = 2', -1, 1)." * sum(d.qty * d.buy_price_ht * (d.situation_percent / 100)) as buying_price,";			// not always positive in case of Credit note
+            $sql.= " ".$db->ifsql('f.type = 2', -1, 1)." * sum(abs(d.total_ht) - (d.buy_price_ht * d.qty * (d.situation_percent / 100))) as marge" ;	// not always positive in case of Credit note
             $sql.= " FROM ".MAIN_DB_PREFIX."societe as s";
             $sql.= ", ".MAIN_DB_PREFIX."facture as f";
             $sql.= ", ".MAIN_DB_PREFIX."facturedet as d";
diff --git a/htdocs/margin/tabs/thirdpartyMargins.php b/htdocs/margin/tabs/thirdpartyMargins.php
index 1d0897a72b0..337190b6c15 100644
--- a/htdocs/margin/tabs/thirdpartyMargins.php
+++ b/htdocs/margin/tabs/thirdpartyMargins.php
@@ -147,8 +147,8 @@ if ($socid > 0)
     $sql.= " f.rowid as facid, f.ref, f.total as total_ht,";
     $sql.= " f.datef, f.paye, f.fk_statut as statut, f.type,";
     $sql.= " sum(d.total_ht) as selling_price,";						// may be negative or positive
-    $sql.= " sum(d.qty * d.buy_price_ht) as buying_price,";				// always positive
-    $sql.= " sum(abs(d.total_ht) - (d.buy_price_ht * d.qty)) as marge";	// always positive
+    $sql.= " sum(d.qty * d.buy_price_ht * (d.situation_percent / 100)) as buying_price,";				// always positive
+    $sql.= " sum(abs(d.total_ht) - (d.buy_price_ht * d.qty * (d.situation_percent / 100))) as marge";	// always positive
     $sql.= " FROM ".MAIN_DB_PREFIX."societe as s";
     $sql.= ", ".MAIN_DB_PREFIX."facture as f";
     $sql.= ", ".MAIN_DB_PREFIX."facturedet as d";