diff --git a/src/request_load_estimator.py b/src/request_load_estimator.py
index 5f99d2c..6567e3d 100644
--- a/src/request_load_estimator.py
+++ b/src/request_load_estimator.py
@@ -180,14 +180,16 @@ class RequestLoadEstimator:
         pass
 
     def _calc_documentation_and_knowledge_level(self):
-        self.documentation_level += (self.personal_available_time * KNOWLEDGE_REDUCTION_FACTOR /
+        documentation_level_reduction = (self.personal_available_time * KNOWLEDGE_REDUCTION_FACTOR /
                                      (self.nr_of_employees * self.nr_of_applications))
+        self.documentation_level += documentation_level_reduction if documentation_level_reduction >= 0 else documentation_level_reduction / 10
 
-        self._service_desk_knowledge_level += self.personal_available_time * KNOWLEDGE_REDUCTION_FACTOR / (
+        know_how_reduction = self.personal_available_time * KNOWLEDGE_REDUCTION_FACTOR / (
                 self.nr_of_employees *
-                self.nr_of_applications *
                 self.service_desk_employees)
 
+        self._service_desk_knowledge_level += know_how_reduction if know_how_reduction >= 0 else know_how_reduction / 10
+
         self.documentation_level = limit_value(self.documentation_level, DOCUMENTATION_LEVEL_MIN,
                                                DOCUMENTATION_LEVEL_MAX)
         self._service_desk_knowledge_level = limit_value(self._service_desk_knowledge_level, KNOWLEDGE_LEVEL_MIN,