diff --git a/src/lib/models/sales.php b/src/lib/models/sales.php
index 15bea58..54fb7f4 100644
--- a/src/lib/models/sales.php
+++ b/src/lib/models/sales.php
@@ -312,7 +312,7 @@ class sales extends \db
                             EXTRACT (DOY FROM end_date + INTERVAL '1' day)
                             OR
                             EXTRACT (DOY FROM NOW()) < EXTRACT (DOY FROM end_date)
-                            THEN (DATE_PART( 'day', end_date - NOW() ) + INTERVAL '1' day)
+                            THEN DATE_PART( 'day', (end_date + INTERVAL '1' day)  - NOW())
                      WHEN   EXTRACT (DOY FROM start_date) >= EXTRACT (DOY FROM end_date)
                             AND
                             EXTRACT (DOY FROM NOW()) >= EXTRACT (DOY FROM start_date)
--
libgit2 0.21.4