diff --git a/src/modules/plant/run2.py b/src/modules/plant/run2.py
index ec18b72..6b22b3d 100644
--- a/src/modules/plant/run2.py
+++ b/src/modules/plant/run2.py
@@ -422,8 +422,8 @@ def main():
             # rata-rata 3 tahun terakhir untuk net_capacity_factor
             eaf_history.append(eaf_v)
             cf_history.append(net_capacity_factor_v)
-            last_3_eaf = eaf_history[-3:]
-            last_3_cf = cf_history[-3:]
+            last_3_eaf = eaf_history[-4:-1]
+            last_3_cf = cf_history[-4:-1]
             avg_eaf_3 = sum(last_3_eaf) / len(last_3_eaf) if last_3_eaf else 0
             avg_cf_3 = sum(last_3_cf) / len(last_3_cf) if last_3_cf else 0
             selisih_eaf_cf = abs(avg_cf_3 - avg_eaf_3)