diff --git a/hb_server/apps/srm/views.py b/hb_server/apps/srm/views.py
index 175c847..57a6a75 100644
--- a/hb_server/apps/srm/views.py
+++ b/hb_server/apps/srm/views.py
@@ -45,7 +45,7 @@ class ProcessYieldView(CreateAPIView):
         ret = []
         process_l = list(Process.objects.filter(is_deleted=False).order_by('number').values('id', 'name'))
         for i in process_l:
-            ret_item = {'id':i['id'], 'name':i['name'], 'count_ok':0, 'count_notok':0, 'rate':0}
+            ret_item = {'id':i['id'], 'name':i['name'], 'count_ok':0, 'count_notok':0, 'rate':1}
             for m in count_ok_g:
                 if m['step__process__id'] == ret_item['id']:
                     ret_item['count_ok'] = m['count_ok']
@@ -53,7 +53,7 @@ class ProcessYieldView(CreateAPIView):
                 if n['step__process__id'] == ret_item['id']:
                     ret_item['count_notok'] = n['count_notok']
             rate = (ret_item['count_ok']/(ret_item['count_ok']+ret_item['count_notok'])) \
-                if ret_item['count_ok']+ret_item['count_notok']>0 else 0
+                if ret_item['count_ok']+ret_item['count_notok']>0 else 1
             ret_item['rate'] = rate
             ret.append(ret_item)
         return Response(ret)