diff --git a/src/calculation_time_constrains/flows.py b/src/calculation_time_constrains/flows.py
index 5e5612d..7397cd7 100644
--- a/src/calculation_time_constrains/flows.py
+++ b/src/calculation_time_constrains/flows.py
@@ -9,7 +9,7 @@ from src.scope.model import Scope
 from src.database.core import DbSession
 from src.scope.service import get_all
 from .schema import CalculationTimeConstrainsParametersRead, CalculationTimeConstrainsParametersRetrive, CalculationTimeConstrainsParametersCreate
-from .service import get_calculation_by_reference_and_parameter, get_calculation_result, get_overhaul_cost_by_time_chart, get_corrective_cost_time_chart, create_param_and_data, get_calculation_data_by_id, create_calculation_result_service
+from .service import get_calculation_by_reference_and_parameter, get_calculation_result, get_overhaul_cost_by_time_chart, get_corrective_cost_time_chart, create_param_and_data, get_calculation_data_by_id, create_calculation_result_service, get_avg_cost_by_asset
 from .model import CalculationResult
 
 from .model import CalculationParam
@@ -87,13 +87,16 @@ async def get_or_create_scope_equipment_calculation(*, db_session: DbSession, sc
 
     if not scope_equipment_calculation:
         # Update Parameter input from scope calculation
-        calculation_time_constrains_in.costPerFailure = scope_calculation.parameter.avg_failure_cost
+        costFailure = get_avg_cost_by_asset(
+            db_session=db_session, assetnum=calculation_time_constrains_in.assetnum)
+
+        calculation_time_constrains_in.costPerFailure = costFailure
         calculation_time_constrains_in.overhaulCost = scope_calculation.parameter.overhaul_cost
 
         scope_equipment_calculation = await create_param_and_data(
             db_session=db_session, calculation_param_in=calculation_time_constrains_in, created_by=scope_calculation.created_by, parameter_id=scope_calculation.parameter_id)
 
-        results = await create_calculation_result_service(db_session=db_session, calculation_id=scope_equipment_calculation.id)
+        results = await create_calculation_result_service(db_session=db_session, calculation_id=scope_equipment_calculation.id, costPerFailure=costFailure)
 
         return results
 
diff --git a/src/calculation_time_constrains/service.py b/src/calculation_time_constrains/service.py
index 95e076c..32985d0 100644
--- a/src/calculation_time_constrains/service.py
+++ b/src/calculation_time_constrains/service.py
@@ -1,9 +1,11 @@
 from typing import Optional
 from uuid import UUID
 import numpy as np
-from sqlalchemy import and_, select
+from sqlalchemy import and_, func, select
 from sqlalchemy.orm import joinedload
 from src.database.core import DbSession
+from src.scope_equipment.model import ScopeEquipment
+from src.workorder.model import MasterWorkOrder
 from .schema import CalculationTimeConstrainsParametersCreate, CalculationTimeConstrainsRead
 from .model import CalculationParam, OverhaulReferenceType, CalculationData, CalculationResult
 from fastapi import HTTPException, status
@@ -110,14 +112,14 @@ async def get_calculation_data_by_id(db_session: DbSession, calculation_id) -> C
     return result.unique().scalar()
 
 
-async def create_calculation_result_service(db_session: DbSession, calculation_id: UUID):
+async def create_calculation_result_service(db_session: DbSession, calculation_id: UUID, costPerFailure: Optional[float]):
     days = 60
     calculation = await get_calculation_data_by_id(db_session=db_session, calculation_id=calculation_id)
     reference = calculation.reference_id if calculation.overhaul_reference_type == OverhaulReferenceType.ASSET else await get(db_session=db_session, scope_id=calculation.reference_id)
 
     # Parameter
     overhaulCost = calculation.parameter.overhaul_cost
-    costPerFailure = calculation.parameter.avg_failure_cost
+    costPerFailure = costPerFailure if costPerFailure else calculation.parameter.avg_failure_cost
 
     overhaul_cost_points = get_overhaul_cost_by_time_chart(
         overhaulCost, days=days)
@@ -168,19 +170,28 @@ async def get_calculation_by_reference_and_parameter(*, db_session: DbSession, c
         CalculationData.reference_id == calculation_reference_id,
         CalculationData.parameter_id == parameter_id,
     ))
-    
+
     result = await db_session.execute(stmt)
-    
+
     return result.scalar()
 
 
-async def get_calculation_result_by_day(*, db_session:DbSession, calculation_id, simulation_day):
+async def get_calculation_result_by_day(*, db_session: DbSession, calculation_id, simulation_day):
     stmt = select(CalculationResult).filter(and_(
         CalculationResult.day == simulation_day,
         CalculationResult.calculation_data_id == calculation_id
     ))
-    
+
     result = await db_session.execute(stmt)
-    
+
     return result.scalar()
-    
+
+
+async def get_avg_cost_by_asset(*, db_session: DbSession, assetnum: str):
+    stmt = (
+        select(func.avg(MasterWorkOrder.total_cost_max).label('average_cost'))
+        .where(MasterWorkOrder.assetnum == assetnum)
+    )
+
+    result = await db_session.execute(stmt)
+    return result.scalar_one_or_none()