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);