diff --git a/apps/inm/services.py b/apps/inm/services.py
index b6236b46..e1b37566 100644
--- a/apps/inm/services.py
+++ b/apps/inm/services.py
@@ -253,10 +253,16 @@ class InmService:
                     do_in(item)
         elif instance.type == MIO.MIO_TYPE_SALE_OUT:
             from apps.sam.services import SamService
-            cls.update_mb(instance, in_or_out)
+            if is_reverse:
+                cls.update_mb(instance, 1)
+            else:
+                cls.update_mb(instance, -1)
             SamService.mio_saleout(instance, is_reverse)
         elif instance.type == MIO.MIO_TYPE_OTHER_OUT:
-            cls.update_mb(instance, in_or_out)
+            if is_reverse:
+                cls.update_mb(instance, 1)
+            else:
+                cls.update_mb(instance, -1)
         elif instance.type == MIO.MIO_TYPE_DO_OUT:
             mioitems = MIOItem.objects.filter(mio=instance)
             if is_reverse: