diff --git a/changelog_entry.yaml b/changelog_entry.yaml
index e69de29b..82712183 100644
--- a/changelog_entry.yaml
+++ b/changelog_entry.yaml
@@ -0,0 +1,4 @@
+- bump: patch 
+  changes:
+    fixed:
+      - Removed the possibility of a negative seed in random() within commons/formulas.py by removing the multiplication by 100
diff --git a/policyengine_core/commons/formulas.py b/policyengine_core/commons/formulas.py
index 4695cf9c..48997c5a 100644
--- a/policyengine_core/commons/formulas.py
+++ b/policyengine_core/commons/formulas.py
@@ -332,7 +332,7 @@ def random(population):
     values = np.array(
         [
             np.random.default_rng(
-                seed=id * 100 + population.simulation.count_random_calls
+                seed=id + population.simulation.count_random_calls
             ).random()
             for id in entity_ids
         ]