diff --git a/balance_sheet_exit.html b/balance_sheet_exit.html
index d2cdb03..7a72861 100644
--- a/balance_sheet_exit.html
+++ b/balance_sheet_exit.html
@@ -234,7 +234,7 @@ function computeAmort() {
 		duree_amort = Number(elem.innerText.replace(/ .*/, ''));
 	}
 	const annuite = montantImmo / duree_amort;
-	const amort_comp = annuite / 360 * nbDays;
+	const amort_comp = annuite / 365 * nbDays;
 	console.log("durée amort = " + duree_amort + ", annuité=" + annuite + ", amort comp = " + amort_comp);
 }
 /*
diff --git a/write_exit.html b/write_exit.html
index 0ef62eb..21549ee 100644
--- a/write_exit.html
+++ b/write_exit.html
@@ -78,7 +78,7 @@
 	}}
 {{:debug nbjours=$nbjours}}
 	{{:assign annuite="%f/%f"|math:$ligne_immo.debit:$duree_amort}}
-	{{:assign amort_comp="round(%f/360*%f, 0)"|math:$annuite:$nbjours}}
+	{{:assign amort_comp="round(%f/365*%f, 0)"|math:$annuite:$nbjours}}
 	{{:assign amort_comp="min(%f, %f)"|math:$valeur_nette:$amort_comp}}
 
 	{{if $_GET.cession == null}}